{"title":"Diamond Testers","description":"\u003cp\u003e26 products from 14 brands, including Hqdz, TEKCOPLUS and Hqdz-td. Prices run from £29.19 to £405.97, including VAT. \u003c\/p\u003e\u003cp\u003ePart of our \u003ca href=\"\/collections\/diamond-gold-testers\"\u003ediamond \u0026amp; gold testers\u003c\/a\u003e department. \u003c\/p\u003e","products":[{"product_id":"wucid-diamond-tester-pen-professional-handheld-gemstone-jewelry-tester-high-accuracy-with-stylus-pouch","title":"WUCID Diamond Tester Pen — Professional Handheld Gemstone \u0026 Jewellery Tester, High-Accuracy with Stylus \u0026 Pouch","description":"\u003cp\u003e\u003cstrong\u003eThe WUCID Diamond Tester Pen Professional is a handheld, high-precision device that quickly checks the authenticity of diamonds and many other gemstones for jewellers and collectors.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCompact and simple to use, this pen-style gemstone tester is designed for both novices and experienced users who need a fast, portable way to evaluate diamonds, sapphires, rubies, emeralds, onyx, crystals and similar stones. It combines a contact stylus and an easy-to-read touch panel so you can get a reliable readout without bulky equipment or advanced training. The unit ships with a common stylus and a leather pouch for storage and transport.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the WUCID pen identify diamonds and other gems?\u003c\/h3\u003e\n\u003cp\u003eThe tester measures properties of the stone when the stylus touches the gem surface and the back contact is held. It uses those electrical\/thermal\/contact characteristics to distinguish diamonds from many imitations and to indicate likely gemstone types. Results are immediate so you can screen items on the spot.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eContact stylus for direct testing of the gem surface\u003c\/li\u003e\n  \u003cli\u003eBack touch panel must be held to complete the circuit and ensure accuracy\u003c\/li\u003e\n  \u003cli\u003eDetects diamonds, sapphires, rubies, emeralds, onyx and common crystals\u003c\/li\u003e\n  \u003cli\u003eInstant readout suitable for quick evaluations and triage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the correct steps to test a stone with the Diamond Tester Pen?\u003c\/h3\u003e\n\u003cp\u003eFollow a few simple steps for consistent readings: insert or attach the stylus, power the unit, touch the back panel with your finger, then place the stylus tip on the stone surface. Hold steadily until the tester reports a result. Avoid touching metal, skin, or water with the stylus to prevent false readings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInstall the common stylus and switch the device on\u003c\/li\u003e\n  \u003cli\u003eTouch the rear panel with your finger before probing the stone\u003c\/li\u003e\n  \u003cli\u003ePlace the stylus tip on the gemstone, hold steady, read the indicator\u003c\/li\u003e\n  \u003cli\u003eDo not test on metal settings, wet stones, or bare skin contact\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow accurate is this pen and what limitations should I expect?\u003c\/h3\u003e\n\u003cp\u003eThe WUCID Diamond Tester Pen offers high accuracy for many common gemstones but it is not a laboratory instrument. It provides reliable screening for most diamonds and typical simulants, however some treated stones, very small gems, or unusual materials may require advanced lab testing. Always corroborate important valuations with professional gemological analysis when necessary.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh precision for standard diamonds and many gems\u003c\/li\u003e\n  \u003cli\u003eLess reliable on unusually small stones or heavily treated gems\u003c\/li\u003e\n  \u003cli\u003eNot a substitute for formal gemological certificates\u003c\/li\u003e\n  \u003cli\u003eProper testing procedure is essential for best results\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes with the tester and how should I care for it?\u003c\/h3\u003e\n\u003cp\u003eThe package includes the tester pen, a common stylus for routine use, and a leather pouch for safe storage. Keep the stylus tip clean and dry, store the pen in its pouch when not in use, and avoid testing on metal or wet surfaces. Regularly check batteries and replace them to maintain consistent performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIncludes stylus and leather storage pouch\u003c\/li\u003e\n  \u003cli\u003eClean tip after each use to prevent residue buildup\u003c\/li\u003e\n  \u003cli\u003eAvoid exposure to water and corrosive chemicals\u003c\/li\u003e\n  \u003cli\u003eReplace batteries when indicator dims or response slows\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis tester is ideal for independent jewellers, pawnshop operators, estate sale buyers, gemstone hobbyists and anyone who needs a portable, fast screening tool. It’s useful for quick authenticity checks before investing time or money into appraisal or repair, but not intended to replace a certified gemological report for high-value transactions.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the tester tell real diamonds from moissanite?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It distinguishes many simulants, but moissanite can sometimes give similar readings. For suspected moissanite, use additional tests or lab confirmation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need training to use the WUCID pen?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No formal training is required; follow the steps: touch the back panel, place stylus on the stone, and read the result.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"WUCID","offers":[{"title":"Default Title","offer_id":55249401643345,"sku":"B0FHKS8Q9W","price":29.19,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/wucid-diamond-tester-pen-front-view.jpg?v=1791635144"},{"product_id":"hqdz-td-diamond-tester-pen-handheld-thermal-conductivity-meter-black-high-accuracy-with-lcd-audible-alert","title":"Hqdz-td Diamond Tester Pen — Handheld Thermal Conductivity Meter, Black, High Accuracy with LCD \u0026 Audible Alert","description":"\u003cp\u003e\u003cstrong\u003eHqdz-td Diamond Tester Pen is a handheld thermal-conductivity meter that quickly distinguishes real diamonds from common simulants with LED\/LCD indicators and audible alerts.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned for jewellers and jewellery owners alike, this compact diamond tester uses thermal conductivity to identify genuine diamonds versus imitations such as cubic zirconia, glass, and crystals. The unit pairs a precision probe with a clear LCD and LED indicator, audible tones, and a selectable sensitivity switch to adapt testing for different stones and sizes. It ships with a leather pouch, testing platform, and manual so you can begin inspecting stones right away.\u003c\/p\u003e\n\n\u003ch3\u003eHow accurate is the Hqdz-td Diamond Tester Pen?\u003c\/h3\u003e\n\u003cp\u003eThe device uses thermal conductivity measurement to provide reliable differentiation between diamonds and many common simulants. Readings are shown on the LCD and reinforced by a green LED and sound when a diamond-like thermal signature is detected.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThermal-conductivity sensing for fast, repeatable results\u003c\/li\u003e\n  \u003cli\u003eLCD plus LED indicator (green light for diamond detection)\u003c\/li\u003e\n  \u003cli\u003eAudible beep patterns to confirm readings without watching the display\u003c\/li\u003e\n  \u003cli\u003eSelectable large\/small mode to suit different stone sizes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and situations can it correctly identify?\u003c\/h3\u003e\n\u003cp\u003eThis tester is optimised to distinguish natural and lab-grown diamonds from typical simulants like cubic zirconia, glass, and many crystals. It also provides alerts if the probe contacts metal or when testing could be unreliable due to mounting or stone size.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDetects diamonds and diamond-like thermal behavior\u003c\/li\u003e\n  \u003cli\u003eNo reaction for many simulants such as CZ; displays other material markers\u003c\/li\u003e\n  \u003cli\u003eMetal contact warning to avoid false positives\u003c\/li\u003e\n  \u003cli\u003eMode switch helps adapt for smaller or irregular stones\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I use and care for the tester to get the best results?\u003c\/h3\u003e\n\u003cp\u003eTesting is straightforward: power on the unit, select the appropriate mode (large or small), let the probe warm if needed, then touch the stone gently with the tip on a clean, dry surface. Use the included platform and leather pouch for consistent testing and safe storage when not in use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUse the provided testing platform for stable contact\u003c\/li\u003e\n  \u003cli\u003eKeep stone surfaces clean and dry before testing\u003c\/li\u003e\n  \u003cli\u003eReplace the 9V battery when low to maintain probe sensitivity\u003c\/li\u003e\n  \u003cli\u003eStore in the included leather pouch to protect the probe tip\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This Hqdz-td Diamond Tester Pen is built for professional jewellers, pawnshops, gem students, and private buyers who need a portable, easy-to-use tool for rapid stone screening. It’s useful for novices who want a straightforward indicator and for experienced users who appreciate an LCD readout, audible cues, and a sensitivity switch for more controlled testing. The kit format—tester, testing platform, leather pouch, and manual—makes it a ready-to-use solution for bench work, market stalls, and home jewellery inspection.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this tester tell lab-grown diamonds from natural diamonds?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — the Hqdz-td tester measures thermal conductivity, which cannot reliably distinguish lab-grown from natural diamonds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What power source does the diamond tester use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The unit runs on a standard 9V battery, which is easy to replace for continuous use.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Hqdz-td","offers":[{"title":"Default Title","offer_id":55253330198865,"sku":"B0DTS53RMS","price":31.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/hqdz-td-front-view.jpg?v=1791657841"},{"product_id":"szcxtop-diamond-tester-pen-with-30x-60x-loupes-portable-gemstone-detector-kit-with-battery-and-lcd","title":"SZCXTOP Diamond Tester Pen with 30X \u0026 60X Loupes — Portable Gemstone Detector Kit with Battery and LCD","description":"\u003cp\u003e\u003cstrong\u003eSZCXTOP Jewellery Diamond Tester Pen is a handheld gemstone detector kit that quickly screens diamonds, moissanite-like stones, jade, and glass using a sensitive probe, LED\/LCD indicators, audible beeps and two jewellers’ loupes.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact professional kit includes the diamond tester pen, a 60X and 30X LED jewellers’ loupe, a 9V battery, leather pouch, a testing platform and a user manual — everything needed to inspect, magnify and evaluate small gems at home, in a shop or on the go. The tester reports relative hardness\/thermal conductivity with visual lights and beeps to separate diamond-like stones from glass, crystal and cubic zirconia. It is designed for jewellery-only screening (not for metal or gold testing) and cannot distinguish natural diamonds from moissanite.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the SZCXTOP tester identify different gemstones?\u003c\/h3\u003e\n\u003cp\u003eThe pen uses a sensitive sensor to measure thermal\/optical properties and translates those readings into LED lights plus audible signals. Results are straightforward: higher-light counts and beeps indicate diamond-like materials, while lower ranges point to softer materials.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDiamond-like readings: 9+ lights plus beeps\u003c\/li\u003e\n  \u003cli\u003eJade indication: typically 5–6 lights\u003c\/li\u003e\n  \u003cli\u003eCrystal\/glass\/cubic zirconia: around 5–7 lights with different response\u003c\/li\u003e\n  \u003cli\u003eNot suitable for metal or gold testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat steps give the most reliable test result?\u003c\/h3\u003e\n\u003cp\u003eFollow the standard operation to minimize false readings: install the 9V battery, preheat the pen for 30 seconds, set the indicator to the fourth mark and hold the built-in metal plate behind the stone. Probe perpendicular to the gemstone surface and reset to the fourth mark before each test.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInsert battery and secure wire clips\u003c\/li\u003e\n  \u003cli\u003ePower on and preheat at least 30 seconds\u003c\/li\u003e\n  \u003cli\u003eSet indicator to the 4th mark before probing\u003c\/li\u003e\n  \u003cli\u003ePlace probe 90° to gemstone and hold the back metal plate\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan anyone use this pen or is training required?\u003c\/h3\u003e\n\u003cp\u003eThe SZCXTOP tester is designed for ease of use so non-specialists can perform quick screenings without formal gemological training. The display, LEDs and beeps help interpret results, while the supplied loupe supports closer examination for inclusions, facets and markings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUser-friendly on\/off, size switch and LCD display\u003c\/li\u003e\n  \u003cli\u003eAudible beeps reinforce visual LED signals\u003c\/li\u003e\n  \u003cli\u003eIncludes 30X and 60X LED loupes for detailed inspection\u003c\/li\u003e\n  \u003cli\u003eComes with a leather pouch and testing platform for safe handling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the kit contents and when should I use the loupe?\u003c\/h3\u003e\n\u003cp\u003eThe kit bundles the tester pen, two magnifiers, a 9V battery, a leather pouch, a testing platform and a manual. Use the loupe to verify cut quality, surface chips, hallmarks or inclusions when a tester reading is ambiguous, or for appraisal and cleaning work.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDiamond Tester Pen with probe and LCD\/LED indicators\u003c\/li\u003e\n  \u003cli\u003e60X \u0026amp; 30X LED jewellers’ loupes with batteries included\u003c\/li\u003e\n  \u003cli\u003e9V battery, leather pouch, testing platform, user manual\u003c\/li\u003e\n  \u003cli\u003eLoupe useful for appraisals, coin\/antique inspection, and hobby work\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The SZCXTOP Jewellery Diamond Tester Pen kit suits independent jewellers, vintage dealers, estate-sellers, pawn shops, gemstone hobbyists and buyers who need a fast, portable way to screen stones before sending items for full laboratory appraisal. It’s ideal for anyone who wants an easy-to-use diagnostic tool combined with magnification to speed up inspections and reduce unnecessary lab costs. Remember: it provides reliable screening but does not replace professional gemological certification or distinguish natural diamonds from moissanite.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the tester distinguish natural diamonds from moissanite?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The SZCXTOP tester flags diamond-like stones but cannot reliably differentiate natural diamonds from moissanite.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the kit ready to use out of the box?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It includes a 9V battery, 30X\/60X loupes and a user manual; preheat for 30 seconds before first test.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SZCXTOP","offers":[{"title":"Default Title","offer_id":55253502951761,"sku":"B0GYS1ZGMX","price":31.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/szcxtop-diamond-tester-front-view.jpg?v=1791659677"},{"product_id":"mollo-diamond-tester-pen-handheld-thermal-conductivity-meter-kit-with-lcd-led-audible-alerts","title":"Mollo Diamond Tester Pen — Handheld Thermal Conductivity Meter Kit with LCD, LED \u0026 Audible Alerts","description":"\u003cp\u003e\u003cstrong\u003eThe Mollo Diamond Tester Pen is a handheld, high-accuracy thermal conductivity meter that quickly distinguishes real diamonds and many other gemstones from simulants.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eCompact and battery-powered, this professional diamond selector kit is built for jewellers, gem hobbyists and buyers who need fast, on-the-spot verification. It combines an LCD and LED readout with audible alerts, a metal-contact alarm, and a two-position size switch so you can test a wide range of stone sizes while avoiding false signals from metal settings.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the Mollo tester identify a genuine diamond?\u003c\/h3\u003e\n\u003cp\u003eThe Mollo pen measures thermal conductivity and converts the result into a visible scale and sound cue. A bright green indicator plus audible tone confirms a genuine diamond when the reading reaches the higher end of the scale.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThermal conductivity sensor for diamond detection.\u003c\/li\u003e\n  \u003cli\u003eGreen LED and sound signal when reading meets diamond criteria.\u003c\/li\u003e\n  \u003cli\u003eLCD scale shows numerical level to interpret results.\u003c\/li\u003e\n  \u003cli\u003eLarge\/small switch adapts probe sensitivity for different stone sizes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat gemstones and fakes can this kit test reliably?\u003c\/h3\u003e\n\u003cp\u003eBeyond diamonds, the Mollo tester can help distinguish many common gemstones and simulants by their thermal properties. The unit produces distinct ranges for diamond, crystal, jade, glass and other stones, but extremely similar simulants may require supplemental testing methods.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDetects real diamond, sapphire, ruby, agate, jadeite and crystal families.\u003c\/li\u003e\n  \u003cli\u003eCommon simulants like cubic zirconia usually register as non-diamond.\u003c\/li\u003e\n  \u003cli\u003eIntermediate readings indicate materials such as glass or jade.\u003c\/li\u003e\n  \u003cli\u003eNot designed to test metals or when gloves obstruct contact.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I get accurate readings — simple step-by-step use?\u003c\/h3\u003e\n\u003cp\u003eAccuracy depends on correct technique and stable temperature. Warm the probe briefly, place it at a 90° angle to the stone surface, and maintain a steady contact pressure while monitoring the LCD and LEDs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePower on and wait for the ready lamp; allow probe to warm up.\u003c\/li\u003e\n  \u003cli\u003eEnsure only one scale light is lit before testing for baseline.\u003c\/li\u003e\n  \u003cli\u003eTouch the probe perpendicularly and hold firmly for a few seconds.\u003c\/li\u003e\n  \u003cli\u003eAvoid testing metal and don’t wear gloves; touch the rear contact when testing diamonds.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat’s included and how is the Mollo pen maintained?\u003c\/h3\u003e\n\u003cp\u003eThe kit arrives ready for use with a 9V battery installed and includes a leather pouch, testing platform and manual. Keep the probe clean, store at moderate temperatures, and replace the battery when readings grow weak.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePackage: Mollo Diamond Tester, leather pouch, testing platform, user manual.\u003c\/li\u003e\n  \u003cli\u003ePowered by one 9V battery (included) — replace when performance drops.\u003c\/li\u003e\n  \u003cli\u003eAvoid cold conditions; battery performance may decrease below 10°C.\u003c\/li\u003e\n  \u003cli\u003eStore probe safely in pouch to protect the sensor tip between uses.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Mollo Diamond Tester Pen is aimed at professional jewellers, pawnshop operators, gemstone enthusiasts and shoppers who want a portable, easy-to-read verifier. It’s suitable for novices who follow the user steps and for experienced users who need a fast thermal-conductivity check as part of a larger gem-evaluation workflow. For ambiguous or high-value stones, combine this tester with other gemological tests for a complete assessment.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the Mollo tester come with a battery?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the Mollo kit includes a 9V battery installed so you can test right away.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I test rings without removing them from their settings?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, but avoid touching metal; use steady 90° probe contact and touch the rear contact pad when testing diamonds.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Mollo","offers":[{"title":"Default Title","offer_id":55253630124369,"sku":"B0B6BTWQN1","price":31.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/mollo-diamond-tester-front-view.jpg?v=1791661769"},{"product_id":"hqdz-td-diamond-tester-pen-high-accuracy-thermal-conductivity-meter-lcd-led-9v-battery-included","title":"Hqdz-td Diamond Tester Pen — High-Accuracy Thermal Conductivity Meter, LCD\/LED, 9V Battery Included","description":"\u003cp\u003e\u003cstrong\u003eThe Hqdz-td High Accuracy Diamond Tester Pen is a handheld thermal-conductivity meter that quickly identifies genuine diamonds versus common simulants using an LCD, LED indicators and audible signals.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eCompact and battery-powered, this diamond selector is built for both beginners and experienced jewellers who need fast, on-the-spot verification. It measures thermal conductivity, displays results on an LCD and lights up LEDs while sounding beeps to indicate authenticity. The unit comes with a 9V battery and a probe that must contact the stone while the operator maintains proper bare-hand contact for accurate readings.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I use the Hqdz-td tester correctly?\u003c\/h3\u003e\n\u003cp\u003eTurn the tester on, set the initialization lights (default four green lights at room temperature), hold the diamond in one hand, and touch the conductive pad with the hand holding the pen. Lightly press the probe tip to the gemstone and wait for the audible and visual indicators to stabilise.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePower on and ensure the 9V battery is installed and charged.\u003c\/li\u003e\n  \u003cli\u003eRotate the wheel to leave four green lights during initialization.\u003c\/li\u003e\n  \u003cli\u003eHold the stone in one bare hand and touch the pen’s conductive pad with the other.\u003c\/li\u003e\n  \u003cli\u003ePress probe tip gently against the gemstone until the display and beeps confirm the result.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat results should I expect and what do they mean?\u003c\/h3\u003e\n\u003cp\u003eThe pen uses LED lights and beeps to report findings: a sequence of green LEDs over 9 and audible tones typically indicate a real diamond, while no sound and no red lights point to common simulants such as cubic zirconia. Note that moissanite conducts heat similarly to diamond and will register like a diamond on this thermal-conductivity tester.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGreen LEDs + audible tones: indicates thermal conductivity consistent with diamond.\u003c\/li\u003e\n  \u003cli\u003eNo sound \/ no red lights: likely a non-diamond simulant (e.g., CZ).\u003c\/li\u003e\n  \u003cli\u003eRed lights behavior: follow the manual table—size and temperature affect initialization.\u003c\/li\u003e\n  \u003cli\u003eMoissanite alert: may test as diamond due to similar thermal properties.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich maintenance and handling steps improve accuracy?\u003c\/h3\u003e\n\u003cp\u003eKeep the probe tip clean, maintain normal skin moisture (no gloves), and ensure the battery is fresh. Incorrect initialization, dirty probe, or testing with gloved hands can produce misleading outcomes, so follow the startup beeps and the rear-panel table for temperature\/size settings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eClean probe tip before each test to prevent false readings.\u003c\/li\u003e\n  \u003cli\u003eTest with bare hands — both hands involved — for proper conductivity path.\u003c\/li\u003e\n  \u003cli\u003eReplace the included 9V battery when startup beeps indicate low power.\u003c\/li\u003e\n  \u003cli\u003eAdjust the initialization wheel if the stone or ambient temperature differs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan this pen distinguish all gemstones and metals?\u003c\/h3\u003e\n\u003cp\u003eThe tester differentiates diamonds from many simulants by measuring heat transfer, but it cannot reliably separate diamonds from moissanite or certain metals that share thermal properties. When testing jewellery with metal settings, expect high-frequency sound due to the metal’s conductivity; remove or isolate the stone where possible for the cleanest result.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAccurate for discriminating many simulants (e.g., CZ) from diamonds.\u003c\/li\u003e\n  \u003cli\u003eCannot distinguish moissanite from diamond because of similar thermal conductivity.\u003c\/li\u003e\n  \u003cli\u003eMetal components may trigger high-frequency sounds—test stones free from settings when possible.\u003c\/li\u003e\n  \u003cli\u003eRefer to the included manual table for interpreting varied stone sizes and temperatures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Hqdz-td High Accuracy Diamond Tester Pen suits hobbyists, pawnshop operators, gem hobbyists, estate dealers and professional jewellers needing a portable, affordable thermal-conductivity checker. It’s ideal for quick field checks, initial screening of loose stones or mounted pieces, and anyone who wants a straightforward visual and audible indication of a gemstone’s thermal behavior before sending items for advanced lab analysis.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the tester come with a battery?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the Hqdz-td tester includes a 9V battery for immediate use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can it tell moissanite from diamond?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — moissanite has similar thermal conductivity and can appear as diamond.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Hqdz-td","offers":[{"title":"Default Title","offer_id":55253713158481,"sku":"B0C3YQ927Y","price":31.47,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/hqdz-td-front-view-diamond-tester-pen.jpg?v=1791663274"},{"product_id":"hqdz-diamond-tester-pen-handheld-diamond-selector-ii-black-with-9v-battery-led-lcd-adjustable-sensitivity","title":"Hqdz Diamond Tester Pen – Handheld Diamond Selector II (Black) with 9V Battery, LED\/LCD \u0026 Adjustable Sensitivity","description":"\u003cb\u003eHqdz Diamond Tester Pen (Diamond Selector II) is a handheld thermal-conductivity tester that quickly indicates whether a gemstone behaves like a real diamond.\u003c\/b\u003e\n\n\u003cp\u003eThis compact, battery-powered tool gives jewellers, buyers and hobbyists a fast, non-destructive way to screen stones. It combines an audible tone, LED\/LCD indicators and interchangeable sensitivity settings so you can adapt to different stone sizes and temperatures. The pen ships with a 9V battery, leather pouch, testing platform and instructions to make field checks and in-shop triage straightforward.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the Hqdz Diamond Tester tell if a stone is diamond?\u003c\/h3\u003e\n\u003cp\u003eThe tester measures thermal conductivity: diamonds move heat away from the probe faster than most simulants. When the probe contacts a stone under the correct conditions, the unit’s LEDs, LCD and beeper respond to indicate a diamond-like thermal reading. Metals and some simulants can trigger a metallic alert, so following the testing procedure matters.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThermal-conductivity probe reads heat transfer speed.\u003c\/li\u003e\n  \u003cli\u003eLED\/LCD and audible tones indicate different results.\u003c\/li\u003e\n  \u003cli\u003eMetallic alert sounds if the probe contacts metal or conductive settings are triggered.\u003c\/li\u003e\n  \u003cli\u003eAdjustable sensitivity knob compensates for stone size and temperature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the most important steps for an accurate test?\u003c\/h3\u003e\n\u003cp\u003eAccuracy depends on correct handling and environmental conditions. Tests require two bare hands, a clean probe tip, and the operator’s finger touching the conductivity panel on the back of the unit. Temperature, wind and battery level all affect readings, so follow the initialization and operating guidelines in the manual.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTest with bare hands only; do not wear gloves.\u003c\/li\u003e\n  \u003cli\u003eOne hand holds the stone, the other holds the pen and touches the back panel.\u003c\/li\u003e\n  \u003cli\u003eUse at 10–35°C and humidity below 80%; avoid windy or cold environments.\u003c\/li\u003e\n  \u003cli\u003eClean the probe tip and ensure a fresh\/charged 9V battery for reliable results.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat limitations and pitfalls should I watch for?\u003c\/h3\u003e\n\u003cp\u003eWhile effective for many stones, thermal testers are not foolproof. Some simulants and certain metals can mimic diamond conductivity and produce false positives. Also, very small stones, pre-set gems, or extreme temperatures can compromise the reading, so suspect or valuable items should receive additional lab testing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMetals and highly conductive materials can trigger high-frequency alerts.\u003c\/li\u003e\n  \u003cli\u003eVery small or mounted stones may require careful initialization or lab verification.\u003c\/li\u003e\n  \u003cli\u003eCold batteries or temperatures below 10°C shorten operating time and accuracy.\u003c\/li\u003e\n  \u003cli\u003eUse the sensitivity knob and rear table guidance to set initial LED levels for size\/temperature.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is the Diamond Selector II to use day-to-day?\u003c\/h3\u003e\n\u003cp\u003eDesigned for both novices and experienced users, the pen’s controls are straightforward: power on, set the initialization lights if needed, place the tip on the stone, and listen\/watch the indicators. A beeping startup confirms proper battery installation; a leather pouch and testing platform make it convenient to carry and store safely.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSimple one-button power with audible confirmation at startup.\u003c\/li\u003e\n  \u003cli\u003eClear visual LED\/LCD readout and beeper for quick interpretation.\u003c\/li\u003e\n  \u003cli\u003eComes with leather pouch, platform, manual and 9V battery for immediate use.\u003c\/li\u003e\n  \u003cli\u003eAdjustable sensitivity knob for various stone sizes and conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Hqdz Diamond Tester Pen suits independent jewellers, pawnshop buyers, estate dealers, gem students and consumers who want a fast, portable screening tool. It’s intended for preliminary identification—excellent for triage and routine checks—but items of high value or ambiguous results should still be confirmed by a gemological laboratory.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the tester need a special battery?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No special battery — it uses a standard 9V battery, which is included in the package.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can it test mounted stones or metals?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It can screen mounted stones, but metals and conductive settings may cause false alerts; lab confirmation is recommended for uncertain results.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Hqdz","offers":[{"title":"Default Title","offer_id":55253791474001,"sku":"B06Y2MT175","price":31.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/hqdz-diamond-tester-front-view.jpg?v=1791664841"},{"product_id":"wucid-diamond-tester-pen-kit-with-loupe-tweezers-portable-thermal-conductivity-tester-for-quick-gem-screening","title":"WUCID Diamond Tester Pen Kit with Loupe \u0026 Tweezers — Portable Thermal Conductivity Tester for Quick Gem Screening","description":"\u003cp\u003e\u003cstrong\u003eWUCID Diamond Tester Pen Kit is a complete portable set that lets you screen diamonds and many common gemstones quickly using thermal conductivity, with handy tools for handling and inspecting stones.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact kit combines a battery-powered diamond tester pen with a jeweler’s loupe, gemstone claw, stainless-steel tweezers, a silver polishing cloth and a soft storage pouch. It’s designed to help hobbyists, collectors and retail staff make fast, practical assessments of loose gems and jewellery components without bulky equipment. The tester relies on thermal conductivity differences to flag natural diamonds versus simulants, while the supplied accessories make preparing, gripping and viewing stones easier.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the tester pen determine whether a stone is a diamond?\u003c\/h3\u003e\n\u003cp\u003eThe pen measures thermal conductivity through a heated probe placed on the gem surface; diamonds conduct heat differently than many simulants. An illuminated indicator scale displays whether the reading falls in the diamond range or among other gem types.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInstall a 9V battery and wait for the ready light.\u003c\/li\u003e\n  \u003cli\u003eKeep the probe perpendicular and steady on the stone.\u003c\/li\u003e\n  \u003cli\u003eRead the indicator scale for diamond-versus-non-diamond results.\u003c\/li\u003e\n  \u003cli\u003eAvoid testing on metal, skin, liquids or unsuitable surfaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat accessories are included and why do they matter?\u003c\/h3\u003e\n\u003cp\u003eThe kit includes tools that streamline testing: a loupe for close inspection, a gemstone claw to hold small stones, tweezers for precise handling, and a polishing cloth to clean surfaces before measurement. Clean, well-secured gems produce more reliable tester readings and reduce handling errors.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e10x jeweler’s loupe for checking inclusions and facet edges.\u003c\/li\u003e\n  \u003cli\u003eGemstone claw to stabilise tiny stones during probe contact.\u003c\/li\u003e\n  \u003cli\u003eStainless steel tweezers for firm, non-slip grip on settings and loose gems.\u003c\/li\u003e\n  \u003cli\u003eSilver polishing cloth to remove oils and tarnish before testing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow simple is the WUCID kit to use during quick inspections?\u003c\/h3\u003e\n\u003cp\u003eOperation is straightforward: insert a standard 9V battery, switch on the pen, wait for the ready signal, then touch the probe to the gem while holding the tester’s back plate. The clear scale and minimal setup make it useful for spot checks at markets, trade shows or private collections.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFast setup—battery-powered with a single on\/off control.\u003c\/li\u003e\n  \u003cli\u003eClear indicator scale for immediate interpretation.\u003c\/li\u003e\n  \u003cli\u003eCompact pouch keeps all tools organized for mobile use.\u003c\/li\u003e\n  \u003cli\u003eLightweight components suitable for field or bench work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat precautions improve accuracy and extend tool life?\u003c\/h3\u003e\n\u003cp\u003eAccuracy depends on correct technique and keeping the probe tip clean. Always test on stone surfaces, avoid conductive materials, and store the kit in the pouch to protect delicate parts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHold the probe at 90 degrees to the gemstone surface.\u003c\/li\u003e\n  \u003cli\u003eContact the tester’s back panel during measurement for grounding.\u003c\/li\u003e\n  \u003cli\u003eDo not use the pen on metal settings, skin, or in water.\u003c\/li\u003e\n  \u003cli\u003eWipe the probe and polish gems before testing to remove debris.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The WUCID Diamond Tester Pen Kit suits jewellery beginners, estate buyers, market vendors and casual collectors who need a lightweight, affordable screening tool. It’s not a substitute for full laboratory analysis or professional gemological certification, but it provides a fast, on-the-go way to triage stones before deeper appraisal.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the tester identify all gemstones?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. It screens by thermal conductivity and helps distinguish diamonds from many simulants, but it won’t reliably identify every gemstone type or treatment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What battery does the diamond tester pen use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The tester uses a standard 9V battery; install it, power on, and wait for the ready indicator before testing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"WUCID","offers":[{"title":"Default Title","offer_id":55254607266129,"sku":"B0FW4WSGBC","price":35.13,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/wucid-tester-pen-front-view.jpg?v=1791681839"},{"product_id":"hqdz-diamond-tester-pen-with-60x-led-magnifier-thermal-conductivity-meter-portable-battery-kit","title":"Hqdz Diamond Tester Pen with 60X LED Magnifier — Thermal Conductivity Meter \u0026 Portable Battery Kit","description":"\u003cp\u003e\u003cstrong\u003eHqdz Diamond Tester Pen with 60X LED magnifier is a compact, battery-powered kit that quickly identifies diamonds using thermal conductivity plus a lighted loupe for close inspection.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis handheld tester and its matching 60X LED magnifying loupe are built for fast, on-the-spot screening of gemstones and jewellery. The pen-style thermal conductivity meter gives audible and visual signals when a stone tests as a diamond, while the LED loupe reveals surface and facet details so you can confirm clarity and cut. Compact, battery-operated, and easy to use, the set is meant for hobbyists, sellers, appraisers, and anyone who wants a quick preliminary check without specialized training.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the tester show a stone is a diamond?\u003c\/h3\u003e\n\u003cp\u003eThe Hqdz pen measures thermal conductivity and uses a row of LEDs plus a beep to indicate a diamond result. When the probe contacts a real diamond, LEDs progressively illuminate and the unit emits a beep once testing completes.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThermal conductivity probe for quick heat-flow detection\u003c\/li\u003e\n  \u003cli\u003eVisible LED indicator bar that lights fully for diamond\u003c\/li\u003e\n  \u003cli\u003eAudio beep confirms a completed positive test\u003c\/li\u003e\n  \u003cli\u003eRequires light, firm contact with the stone; no complex calibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat can I check with the 60X LED magnifier?\u003c\/h3\u003e\n\u003cp\u003eThe included 60X LED loupe lets you inspect facets, surface blemishes, and setting quality that a naked eye misses. Use it to spot polishing lines, chips, or inclusions and to verify manufacturer marks or mounting details.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e60X magnification with built-in LED for clear, shadow-free viewing\u003c\/li\u003e\n  \u003cli\u003eHelps confirm clarity, facet edges, and cutting patterns\u003c\/li\u003e\n  \u003cli\u003eUseful for reading tiny stamps and evaluating stone mounts\u003c\/li\u003e\n  \u003cli\u003eComes with a protective case for safe transport\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is it to use for beginners?\u003c\/h3\u003e\n\u003cp\u003eHqdz designed this tester for straightforward operation so no professional experience is required. Turn the pen on, place the probe lightly against the gemstone, and watch the LEDs while listening for the beep; counterfeit stones and simulants generally produce no full LED readout or beep.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSimple on\/off operation and clear visual\/audio feedback\u003c\/li\u003e\n  \u003cli\u003eLight probe pressure is sufficient — no heavy pushing needed\u003c\/li\u003e\n  \u003cli\u003ePortable cases keep tools protected and ready for field checks\u003c\/li\u003e\n  \u003cli\u003eBattery-powered for testing anywhere without a power outlet\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat limitations should I be aware of?\u003c\/h3\u003e\n\u003cp\u003eThe device is a screening tool, not a substitute for laboratory grading or certification. Some imitations and treatments can affect thermal readings, and certain simulants may sometimes confuse testers—use the loupe and, when in doubt, seek a gemological lab for definitive analysis.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBest used as a preliminary field check, not a certificate\u003c\/li\u003e\n  \u003cli\u003eSome stones and treatments can produce ambiguous results\u003c\/li\u003e\n  \u003cli\u003eFollow up with professional appraisal for high-value items\u003c\/li\u003e\n  \u003cli\u003eRegular maintenance and correct tip contact improve accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Hqdz Diamond Tester Pen + 60X LED Loupe kit suits collectors, estate sale shoppers, jewellery sellers, pawnhouse staff, and hobbyists who need a fast, portable way to screen diamonds and inspect fine-detail work. It’s especially useful for anyone attending markets or inspecting pieces away from a full workshop; still, professionals handling high-value gems should combine this kit with lab-grade testing for final verification.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the Hqdz tester require calibration?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No regular calibration is needed for basic use; follow the manual for occasional checks to maintain accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can it tell diamonds from cubic zirconia?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — most cubic zirconia and glass simulants will not trigger the full LED readout or the beep.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Hqdz","offers":[{"title":"Default Title","offer_id":55254646227281,"sku":"B09TXHWKKT","price":33.82,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/hqdz-tester-front-view.jpg?v=1791682885"},{"product_id":"hmkis-diamond-tester-pen-with-60x-led-loupe-non-rechargeable-type-c-9v-powered-led-lcd","title":"HMKIS Diamond Tester Pen with 60X LED Loupe — Non-Rechargeable, Type-C\/9V Powered, LED\/LCD","description":"\u003cp\u003e\u003cstrong\u003eThe HMKIS Diamond Tester Pen is a handheld, Type-C\/9V-powered gem tester paired with a 60X LED jeweler’s loupe for fast, on-the-spot diamond verification.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact kit combines a professional diamond selector with an illuminated magnifier so collectors, jewellers, and casual buyers can quickly inspect and screen gemstones. It uses a stable Type-C power option (or 9V) for improved voltage consistency and includes a testing platform and clear visual and audible cues to help users interpret results without needing lab equipment.\u003c\/p\u003e\n\n\u003ch3\u003eHow quickly can I check a stone with this tester?\u003c\/h3\u003e\n\u003cp\u003eTesting is designed to be fast: power on, select the approximate stone size, touch the back panel, then place the pen tip on the gemstone. The device gives immediate visual (LED\/LCD) and audible feedback to indicate likely diamond properties.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePower options: Type-C cable (included) or 9V battery\u003c\/li\u003e\n  \u003cli\u003eSize selection switches for large\/small stones\u003c\/li\u003e\n  \u003cli\u003eInstant LED, LCD, and beep responses\u003c\/li\u003e\n  \u003cli\u003eIncludes testing platform for stable readings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat accuracy and features help me trust the results?\u003c\/h3\u003e\n\u003cp\u003eThe tester uses improved voltage stability when powered by Type-C to reduce false readings and increase repeatability. It’s built for preliminary verification, not as a replacement for lab certifications, and uses a combination of sensors, LCD readout, and audible cues to indicate diamond versus simulant behavior.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eType-C power recommended for steadier voltage and better precision\u003c\/li\u003e\n  \u003cli\u003eLarge\/small stone modes reduce calibration error\u003c\/li\u003e\n  \u003cli\u003eRed LED and beep signify a diamond-like result\u003c\/li\u003e\n  \u003cli\u003eFlashing or shutdown indicates poor contact or testing of unsuitable materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat common mistakes should I avoid when testing?\u003c\/h3\u003e\n\u003cp\u003eAccurate results depend on correct handling: choose the right stone size, keep steady contact on the back touch panel, and never test on metal, skin, or wet surfaces. Incorrect contact or improper procedure can cause flashing, shutdown, or misleading signals.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAlways set the diamond-size switch before testing\u003c\/li\u003e\n  \u003cli\u003eTouch the rear panel to complete the circuit during testing\u003c\/li\u003e\n  \u003cli\u003eAvoid testing on metal, skin, water, or unsupported surfaces\u003c\/li\u003e\n  \u003cli\u003eUse the included platform to steady small stones during checks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat else is included and how do I maintain the kit?\u003c\/h3\u003e\n\u003cp\u003eThe package supplies everything you need to begin screening stones immediately: the pen tester, a 60X LED loupe (with batteries), a 1m Type-C cable, a testing platform, and a user manual. Because the pen is non-rechargeable, use the Type-C cable for stable external power or the 9V option when needed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x HMKIS Diamond Tester Pen (non-rechargeable)\u003c\/li\u003e\n  \u003cli\u003e1 x 60X LED Jeweler’s Loupe with batteries\u003c\/li\u003e\n  \u003cli\u003e1 x 1m Type-C cable and 1 x testing platform\u003c\/li\u003e\n  \u003cli\u003eFollow the manual for calibration and care to preserve accuracy\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The HMKIS Diamond Tester Pen with 60X loupe is aimed at independent jewellers, estate buyers, pawn shops, gem collectors, and consumers who want a quick, transportable way to screen diamonds and detect common simulants like glass or cubic zirconia. It’s ideal when you need fast, field-friendly verification and detailed visual inspection without sending stones to a lab.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is the HMKIS pen rechargeable?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The pen is non-rechargeable; use the included Type-C cable for stable external power or a 9V battery.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can it distinguish diamonds from cubic zirconia?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—it's designed to differentiate diamonds from common simulants, using LED\/LCD cues and audible signals for quick screening.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HMKIS","offers":[{"title":"Default Title","offer_id":55254962831697,"sku":"B08MTG5NHJ","price":32.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/hmkis-tester-pen-front-view.jpg?v=1791693871"},{"product_id":"miuono-diamond-tester-pen-handheld-gem-tester-with-10x-loupe-tweezers-9v-battery-fast-non-destructive-diamond-verification","title":"MIUONO Diamond Tester Pen — handheld gem tester with 10x loupe, tweezers \u0026 9V battery, fast non-destructive diamond verification","description":"\u003cp\u003e\u003cstrong\u003eThe MIUONO Diamond Tester is a handheld, non-destructive pen tester that quickly indicates whether a stone is a real diamond using lights and an audible tone.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eDesigned for hobbyists, jewellers, pawnbrokers and collectors, this compact kit combines a precision thermal-conductivity diamond probe with a 10x jeweler’s loupe and tweezers, all in a portable case. Results appear as a combination of LED lights and a steady beep for genuine diamonds, while simulants like cubic zirconia and glass do not trigger the same response. The unit ships with a 9V battery so you can test immediately.\u003c\/p\u003e\n\n\u003ch3\u003eHow fast and reliable are the test results?\u003c\/h3\u003e\n\n\u003cp\u003eTesting takes only seconds and does not harm the stone or setting. The tester relies on thermal conductivity to differentiate diamonds from common imitations; when the probe senses diamond-level conductivity, LEDs light sequentially and you’ll hear a steady beep.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eTypical test time: under 5 seconds per stone\u003c\/li\u003e\n  \u003cli\u003eIndicators: progressive LEDs and continuous beep for diamond-level readings\u003c\/li\u003e\n  \u003cli\u003eNon-destructive: safe for mounted stones and finished jewellery\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat accessories are included and how do they help?\u003c\/h3\u003e\n\n\u003cp\u003eThe kit comes complete with the diamond tester pen, a 10x jeweler’s loupe for close inspection, precision tweezers for secure handling, and a 9V battery so the tool is ready to use out of the box. A compact carrying case keeps everything organized for travel or shop use.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e10x loupe: magnifies inclusions, cut and facet edges\u003c\/li\u003e\n  \u003cli\u003eTweezers: steadies small stones during testing\u003c\/li\u003e\n  \u003cli\u003e9V battery: included for immediate operation\u003c\/li\u003e\n  \u003cli\u003eCarrying case: protects components and aids portability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I interpret the lights and sounds?\u003c\/h3\u003e\n\n\u003cp\u003eWhen the probe encounters the thermal conductivity typical of diamond, the LEDs advance and a steady beep sounds — a clear sign that the stone behaves like diamond. If the LEDs remain low and no continuous beep occurs, the stone is likely a simulant (for example, cubic zirconia or glass).\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSteady beep + LED progression (≥9 lights): indicates diamond-like conductivity\u003c\/li\u003e\n  \u003cli\u003eNo beep and no LED progression: indicates non-diamond simulant\u003c\/li\u003e\n  \u003cli\u003eQuick retesting advised for coated stones or mixed materials\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the tester difficult to use for beginners?\u003c\/h3\u003e\n\n\u003cp\u003eNo — the MIUONO tester is designed for straightforward operation with clear visual and audio cues. While professionals may rely on spectrometers for advanced identification, this pen is an accessible first-step tool for everyday verification.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eSimple one-handed probe contact with the stone\u003c\/li\u003e\n  \u003cli\u003eClear LED and sound feedback reduces interpretation errors\u003c\/li\u003e\n  \u003cli\u003eUse the included loupe and tweezers to position stones properly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The MIUONO Diamond Tester kit suits jewellery shop staff, estate-sale buyers, gem students, online sellers, and anyone who needs a fast, portable way to screen stones before committing to further testing. It’s a practical first-line tool for spotting obvious simulants, verifying purchases, and supporting appraisal workflows without specialized training.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the MIUONO tester damage jewellery?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No, it uses non-destructive thermal conductivity testing and is safe on mounted stones.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does it work on all diamond cuts and sizes?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it works on most cuts and sizes, though very small melee stones may require careful positioning.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"MIUONO","offers":[{"title":"Default Title","offer_id":55255230742865,"sku":"B08F21JJGR","price":39.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/miuono-front-view-tests-pen.jpg?v=1791700662"},{"product_id":"hmkis-diamond-tester-usb-c-365nm-uv-light-jewelers-loupe-fast-thermal-screening-for-diamonds","title":"HMKIS Diamond Tester USB-C — 365nm UV Light \u0026 Jeweler's Loupe, Fast Thermal Screening for Diamonds","description":"\u003cp\u003e\u003cstrong\u003eHMKIS Diamond Tester is a compact, USB-powered toolkit that combines thermal conductivity testing, a 365nm UV light and a jeweler's loupe to quickly distinguish natural diamonds from common simulants like moissanite and cubic zirconia.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis all-in-one instrument pairs a sensitive thermoelectric probe with a dedicated 365nm ultraviolet lamp and a built-in loupe so you can run three complementary checks without switching devices. Designed for bench or field use, it accepts USB-C power for continuous operation and a 9V battery when portability matters. The unit gives clear visual feedback to help jewellers, resellers and collectors screen stones faster while keeping a compact footprint.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the thermal probe help identify diamonds?\u003c\/h3\u003e\n\u003cp\u003eThe HMKIS unit uses a thermoelectric sensor to measure heat transfer through a gemstone—diamonds conduct heat differently than many simulants. The device returns a quick “diamond” or “simulant” indication, helping you narrow down candidates before deeper inspection.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFast thermoelectric sensor for near-instant readings\u003c\/li\u003e\n  \u003cli\u003eClear indicator lights for intuitive results\u003c\/li\u003e\n  \u003cli\u003eUseful first-pass screening on loose stones or mounted jewellery\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy include a 365nm UV lamp—what does it reveal?\u003c\/h3\u003e\n\u003cp\u003eThe UV light highlights fluorescence and optical effects that aren’t obvious under normal lighting. Moissanite often shows a distinctive double refraction (image doubling) under this wavelength, while some diamonds and simulants fluoresce differently—giving an extra diagnostic cue.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e365nm wavelength tuned to reveal fluorescence patterns\u003c\/li\u003e\n  \u003cli\u003eHelps spot moissanite doubling and other optical signatures\u003c\/li\u003e\n  \u003cli\u003eQuick on\/off lamp built into the same compact toolset\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen should I use the loupe and what will I see?\u003c\/h3\u003e\n\u003cp\u003eThe included loupe lets you inspect cut quality, facet junctions, and surface conditions after instrument tests. Visual examination can confirm labelling clues and spot telltale signs like facet wear, polishing lines, or characteristic inclusion patterns.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHandheld jeweler’s loupe integrated for immediate close inspection\u003c\/li\u003e\n  \u003cli\u003eHelps verify results from thermal and UV tests\u003c\/li\u003e\n  \u003cli\u003eEssential for assessing clarity, cut, and mounting-related details\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I power and carry the tester for shop or travel use?\u003c\/h3\u003e\n\u003cp\u003eThe tester supports two power modes: USB-C for continuous benchtop use and a 9V battery for portable checks. This flexibility means you can leave it plugged in at a workstation or grab it for off-site appraisals without sacrificing functionality.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUSB Type-C for stable, continuous operation\u003c\/li\u003e\n  \u003cli\u003e9V battery option for quick field checks (non-rechargeable battery)\u003c\/li\u003e\n  \u003cli\u003eCompact, durable housing designed for frequent handling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The HMKIS Diamond Tester + 365nm UV Light + Jewellery Loupe is built for professional and hobbyist users who need fast, practical screening tools. It suits bench jewellers verifying trade-ins, gem traders assessing inventory, pawnshop staff, estate liquidators, and serious collectors who want an affordable, multi-test kit to separate natural diamonds from common simulants before sending pieces for lab certification.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this tester tell moissanite apart from diamond?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—the combination of thermal probe and 365nm UV light helps detect moissanite’s double refraction and different fluorescence patterns.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does it require batteries or can I use USB power?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: You can power it continuously via USB-C or use a 9V battery for portable, off-site testing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"HMKIS","offers":[{"title":"Default Title","offer_id":55255252894033,"sku":"B0GVHT4VDG","price":37.51,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/hmkis-front-view-device.jpg?v=1791701312"},{"product_id":"hqdz-diamond-tester-pen-with-30x-60x-led-loupe-compact-clear-screen-gem-tester-magnifier","title":"Hqdz Diamond Tester Pen with 30X\/60X LED Loupe — Compact Clear-Screen Gem Tester \u0026 Magnifier","description":"\u003cp\u003e\u003cstrong\u003eHqdz Diamond Tester Pen is a compact, entry-level electrical tester paired with a 30X\/60X LED foldable loupe to help you distinguish real diamonds and common imitation stones quickly and affordably.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis handheld kit combines a clear-screen diamond probe and a small magnifying loupe so hobbyists, jewellers and buyers can check gemstones and inspect details on the go. The tester reports conductivity readings and audible beeps for diamonds while the loupe provides illuminated, close-up views of cut, clarity and surface features. It’s designed as a practical toolkit for everyday verification, not for grading provenance or distinguishing lab-grown diamonds.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the tester indicate a real diamond?\u003c\/h3\u003e\n\u003cp\u003eThe electronic pen shows readings on a clear screen and emits a low-frequency beep when it detects diamond-level conductivity. Readings above the device’s threshold indicate diamond; lower readings correspond to common imitations like CZ or glass. Use the conductive contact pad on the back and hold the stone with a second hand for reliable measurements.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eClear-screen numeric readout for fast interpretation\u003c\/li\u003e\n  \u003cli\u003eLow-frequency beep (about 1 time\/sec) when diamond conductivity is detected\u003c\/li\u003e\n  \u003cli\u003eNo sound or red LED for typical imitation stones\u003c\/li\u003e\n  \u003cli\u003eRequires two-handed contact for accurate results\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat can the loupe reveal that the tester can't?\u003c\/h3\u003e\n\u003cp\u003eThe included foldable loupe offers 30X and 60X magnification with LED lighting so you can inspect facets, inclusions and surface wear that a conductivity test cannot show. It helps identify cutting marks, glue lines, or polishing patterns that often distinguish genuine gemstones from simulants. The loupe is compact and ideal for quick visual checks anywhere.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTwo magnification options: 30X for overview, 60X for fine detail\u003c\/li\u003e\n  \u003cli\u003eBuilt-in LED for clear viewing in low light\u003c\/li\u003e\n  \u003cli\u003eFoldable, pocket-sized design for portability\u003c\/li\u003e\n  \u003cli\u003eUseful for examining settings, hallmarks and inclusions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I perform tests to get accurate results?\u003c\/h3\u003e\n\u003cp\u003eAlways use two hands: one to hold the gemstone and the other to operate the tester while keeping the hand with the tester touching the conductive pad on the unit’s back. Avoid testing in extremely wet or static-prone environments and remove the stone from heavy mountings that could insulate it. Combine the electrical reading with a loupe inspection for the most reliable quick-assessment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHold stone in one hand; operate tester with the other\u003c\/li\u003e\n  \u003cli\u003eEnsure tester’s conductive pad contacts your skin for circuit completion\u003c\/li\u003e\n  \u003cli\u003eTest on clean, dry stones free of adhesive or heavy mounts\u003c\/li\u003e\n  \u003cli\u003eUse loupe to confirm visual cues alongside electronic reading\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the tool’s limits and ideal uses?\u003c\/h3\u003e\n\u003cp\u003eThis device is aimed at distinguishing diamonds from many common simulants (cubic zirconia, glass, crystal) and for quick visual inspection of gems and settings. It does not differentiate natural diamonds from lab-grown diamonds, nor does it replace full laboratory certification. It’s best used by collectors, estate buyers, pawn shops and casual sellers for fast preliminary screening.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGood for quick checks of diamonds, jades, agates, emeralds and crystals\u003c\/li\u003e\n  \u003cli\u003eNot suitable for grading or certifying stone origin\u003c\/li\u003e\n  \u003cli\u003eDesigned for beginners and everyday use, portable for market or travel\u003c\/li\u003e\n  \u003cli\u003eCombines electronic testing with magnified visual inspection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Hqdz Diamond Tester Pen and LED loupe set suits hobbyist jewellers, vintage dealers, pawn shoppers and private buyers who need a fast, portable method to screen gemstones before purchase or resale. If you require lab-grade verification or origin reports, pair this tool with professional gemological services; for everyday screening, it provides a compact, convenient first step.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this pen tell natural from lab-grown diamonds?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The tester distinguishes diamonds from common simulants but cannot differentiate natural diamonds from lab-grown varieties.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How should I hold items during testing?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use two hands: hold the stone with one hand and the tester with the other, ensuring the tester’s conductive pad contacts your skin.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Hqdz","offers":[{"title":"Default Title","offer_id":55257053888849,"sku":"B0F22C84XR","price":42.29,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/hqdz-front-view-diamond-tester-pen.jpg?v=1791716893"},{"product_id":"hqdz-td-jewelry-diamond-tester-kit-200g-0-01g-pocket-scale-60x-led-loupe-thermal-tester-pen","title":"Hqdz-td Jewellery Diamond Tester Kit — 200g\/0.01g Pocket Scale, 60x LED Loupe \u0026 Thermal Tester Pen","description":"\u003cp\u003e\u003cstrong\u003eHqdz-td's Jewellery Diamond Tester Kit is a compact, multi-tool gem testing set that combines a thermal-conductivity diamond tester pen, a 200g\/0.01g pocket scale, and a 60x LED loupe for quick, on-the-spot gemstone identification and weighing.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis kit bundles three practical instruments into one portable package so collectors, buyers, and hobbyists can test stones and measure weight with confidence while away from the bench. The tester uses thermal conductivity to flag many natural diamonds versus common simulants, the precision pocket scale reads in 0.01 g increments (and multiple modes), and the illuminated 60x loupe helps inspect facets, surface details, and inclusions. Everything fits into small carrying cases that slip into a bag or pocket for market visits, estate sales, or jewellery cleanouts.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the diamond tester pen indicate real or fake stones?\u003c\/h3\u003e\n\u003cp\u003eThe Hqdz-td pen reads thermal conductivity: diamonds conduct heat differently than most simulants. During testing, a clear audible beep and visual indicator notify you of diamond-level conductivity; no beep and no red lights typically indicate simulants or glass.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEasy tip contact — light pressure only is required.\u003c\/li\u003e\n  \u003cli\u003eInitialization uses the control wheel and green LED calibration lights.\u003c\/li\u003e\n  \u003cli\u003eNo damage to stones — non-invasive thermal test method.\u003c\/li\u003e\n  \u003cli\u003eNote: moissanite shows similar conductivity to diamonds and may return a diamond-like result.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat accuracy and modes does the mini jewellery scale provide?\u003c\/h3\u003e\n\u003cp\u003eThe included pocket scale measures up to 200 g with 0.01 g resolution, suitable for small stones and precious metal weights. It supports six weighing units and a tare function to zero containers, and an energy-saving auto-off preserves battery life during travel.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCapacity: 200 g; readability: 0.01 g.\u003c\/li\u003e\n  \u003cli\u003eModes: g, oz, gn, ct, dwt, ozt for flexible measuring.\u003c\/li\u003e\n  \u003cli\u003eTare feature for weighing mounts or containers.\u003c\/li\u003e\n  \u003cli\u003eAuto-off after ~3 minutes to extend battery life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow will the 60x LED loupe help inspect gems and settings?\u003c\/h3\u003e\n\u003cp\u003eThe 60x magnifier provides bright LED illumination and strong magnification to reveal facet edges, inclusions, polishing marks, and hallmarks that are hard to see with the naked eye. Its small size and dedicated case make it handy for on-site inspections and quick quality checks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e60x magnification with integrated LED lighting for clear viewing.\u003c\/li\u003e\n  \u003cli\u003eCompact design fits in a purse or pocket for market trips.\u003c\/li\u003e\n  \u003cli\u003eIdeal for checking clarity, cut details, and setting condition.\u003c\/li\u003e\n  \u003cli\u003eComes with protective carry case to prevent lens damage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat limitations should I be aware of when using this kit?\u003c\/h3\u003e\n\u003cp\u003eThis set is designed for fast, practical field checks rather than laboratory certification. The thermal tester cannot reliably separate moissanite from diamond, and results should be confirmed with specialized lab equipment for high-value transactions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMoissanite may test like a diamond due to similar thermal conductivity.\u003c\/li\u003e\n  \u003cli\u003eNot a replacement for gemological lab certificates or advanced analysis.\u003c\/li\u003e\n  \u003cli\u003eProper initialization and steady tip contact are required for accurate readings.\u003c\/li\u003e\n  \u003cli\u003ePractice and familiarization improve consistency for novices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Hqdz-td Jewellery Diamond Tester Kit suits flea-market buyers, estate-sale hunters, pawnshop operators, hobbyist jewellers, and anyone who wants a reliable, portable way to screen stones, check weights, and inspect detail on the spot. It’s best used as a quick verification tool before pursuing professional grading or high-value purchases.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the tester tell moissanite from diamond?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No, moissanite often registers like diamond because it has similar thermal conductivity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is the smallest weight the scale can read?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The pocket scale reads down to 0.01 grams with a maximum capacity of 200 grams.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Hqdz-td","offers":[{"title":"Default Title","offer_id":55257092915537,"sku":"B0CVX9YKYQ","price":42.06,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/hqdz-td-front-kit-assembly.jpg?v=1791717029"},{"product_id":"hqdz-jewelry-diamond-tester-kit-thermal-conductivity-pen-200g-0-01g-mini-scale-30-60-90-led-loupes-for-portable-gem-apprai","title":"Hqdz Jewellery Diamond Tester Kit — Thermal Conductivity Pen, 200g×0.01g Mini Scale \u0026 30×\/60×\/90× LED Loupes for Portable Gem Apprai","description":"\u003cp\u003e\u003cstrong\u003eThe Hqdz Jewellery Diamond Tester Kit is a portable toolkit that checks gemstone authenticity using thermal conductivity, measures weight to 0.01g, and magnifies details up to 90× for quick, on-the-spot appraisal.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhether you buy, sell, or simply inspect gems, this compact set combines a diamond tester pen, a precision 200 g x 0.01 g pocket scale, and three LED loupes (30×, 60×, 90×) so you can evaluate stones and settings without bulky equipment. Designed for fieldwork at markets, estate sales, or workshops, the kit emphasizes easy operation and safe, non-destructive testing. It includes carry cases for the loupe and pen so everything fits in a pocket or small bag.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the diamond tester detect real gems?\u003c\/h3\u003e\n\u003cp\u003eThe Hqdz pen measures thermal conductivity to distinguish heat-dispersing stones like diamonds from many simulants. After warm-up you adjust the sensitivity wheel until the green lights stabilise, then touch the probe to the stone’s surface for an audible or visual result. Note: moissanite shares similar thermal properties to diamond, so the tester cannot reliably separate the two.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThermal-conductivity sensor for rapid readout\u003c\/li\u003e\n  \u003cli\u003eAdjustable sensitivity dial with green-light initialization\u003c\/li\u003e\n  \u003cli\u003eNon-destructive tip contact — no harm to settings or stones\u003c\/li\u003e\n  \u003cli\u003eCannot differentiate moissanite from diamond\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat can I check with the mini scale and how accurate is it?\u003c\/h3\u003e\n\u003cp\u003eThe included 200 g pocket scale reads in 0.01 g increments and offers multiple weight units, making it suitable for gems, small jewellery pieces, and bezel or container tare. It has a tare function to zero a tray or pouch, an auto-off timer to save battery, and precise sensors for consistent measurements during inspection or resale negotiations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaximum capacity 200 g with 0.01 g resolution\u003c\/li\u003e\n  \u003cli\u003eSix weigh modes: g, oz, gn, ct, dwt, ozt\u003c\/li\u003e\n  \u003cli\u003eTare function for containers and 3-minute auto-off\u003c\/li\u003e\n  \u003cli\u003eCompact footprint fits into purses or tool rolls\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do the LED loupes help assess clarity and setting quality?\u003c\/h3\u003e\n\u003cp\u003eThe 30×, 60×, and 90× magnifiers reveal inclusions, facet edges, and setting finishes so you can judge clarity and craftsmanship more accurately. Each loupe has built-in LED lighting for consistent illumination and comes with a protective case, making it simple to inspect stones in dim markets or workshops.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThree magnification strengths for progressive inspection\u003c\/li\u003e\n  \u003cli\u003eLED lights to enhance visibility of inclusions and cuts\u003c\/li\u003e\n  \u003cli\u003eProtective carrying cases for safe storage in the field\u003c\/li\u003e\n  \u003cli\u003eSmall size that slips into pockets for mobile appraisal\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs this kit suitable for professional or casual users?\u003c\/h3\u003e\n\u003cp\u003eThe set is designed for both novices and experienced users who need a lightweight, transportable testing solution. Beginners will appreciate the straightforward pen operation and clear loupe illumination, while experienced appraisers can use the scale and magnifiers for quick checks before resorting to lab-grade equipment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSimple step-by-step pen operation for quick screening\u003c\/li\u003e\n  \u003cli\u003ePrecision scale for reliable weight verification\u003c\/li\u003e\n  \u003cli\u003eMagnifiers for visual clarity checks prior to detailed appraisal\u003c\/li\u003e\n  \u003cli\u003eCompact and organized for market visits or estate evaluations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Collectors, estate-sale shoppers, market vendors, pawn brokers, hobbyist gemologists, and jewellery hobbyists who need a compact, reliable toolkit for rapid on-site screening will find this Hqdz kit especially useful. It’s a practical first-line inspection set that helps you decide when a piece requires further laboratory testing. For full certainty on high-value stones, pair these tools with professional lab services.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this tester damage my jewellery?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — the pen uses a gentle thermal probe that doesn’t harm gemstones or metal settings when used as directed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will it tell moissanite apart from diamonds?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — this tester detects thermal conductivity, and moissanite has very similar thermal properties to diamond.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Hqdz","offers":[{"title":"Default Title","offer_id":55257221333329,"sku":"B0CW17WC9L","price":42.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/hqdz-pen-front-view.jpg?v=1791717539"},{"product_id":"mollo-diamond-tester-pen-torch-kit-battery-included-high-accuracy-thermal-conductivity-tester","title":"Mollo Diamond Tester Pen \u0026 Torch Kit, Battery Included — High-Accuracy Thermal Conductivity Tester","description":"\u003cb\u003eMollo Diamond Tester Pen is a compact, battery-powered thermal conductivity tool and diamond torch that helps identify diamonds and common gemstones quickly and reliably.\u003c\/b\u003e\n\nThe Mollo tester combines a handheld diamond probe with a small torch to reveal light-colour effects and thermal response of stones, offering a portable solution for jewellers, appraisers, and hobbyists. Designed with an ergonomic grip and factory-tested components, the kit arrives ready to use (battery included) and targets fast, on-the-spot evaluation rather than laboratory-grade certification.\n\n\u003ch3\u003eHow does the Mollo Diamond Tester Pen determine whether a stone is a diamond?\u003c\/h3\u003e\n\u003cp\u003eThe tester uses a thermal conductivity probe to read heat transfer through the stone while the integrated torch highlights light colour effects. The instrument displays results with a numbered light scale and audible signal for clearer interpretation.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eProbe contacts stone at 90 degrees—firm, steady pressure recommended.\u003c\/li\u003e\n  \u003cli\u003eLights indicate scale: higher numbers with sound suggest diamond.\u003c\/li\u003e\n  \u003cli\u003eBuilt-in torch enhances visual cues under the probe during testing.\u003c\/li\u003e\n  \u003cli\u003eA brief warm-up is required for accurate readings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat do the indicator lights and sounds mean during testing?\u003c\/h3\u003e\n\u003cp\u003eLights correspond to thermal readings and material type; audible tones reinforce high-confidence results. The manual provides thresholds so you can interpret sounds and light counts without external tools.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e9 lights with sound: consistent with diamond readings.\u003c\/li\u003e\n  \u003cli\u003e7–8 lights: likely crystal (high silica content).\u003c\/li\u003e\n  \u003cli\u003e6–7 lights: readings typical for jade-like materials.\u003c\/li\u003e\n  \u003cli\u003e4–5 lights: results often indicate glass or simulants.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I get reliable results with this handheld tester?\u003c\/h3\u003e\n\u003cp\u003eAccuracy depends on proper handling, temperature, and contact technique. Follow the warm-up, single-light-check, and firm 90-degree contact steps to minimize false readings, and avoid testing metals or wearing gloves during measurement.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTurn on device and confirm only one scale light is initially lit.\u003c\/li\u003e\n  \u003cli\u003eWait for the probe warm-up until the ready lamp is steady.\u003c\/li\u003e\n  \u003cli\u003eApply steady pressure to make full probe-to-stone contact for a few seconds.\u003c\/li\u003e\n  \u003cli\u003eRepeat the test if the probe slips or gives ambiguous lights.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan this kit replace professional lab grading or serve all gem types?\u003c\/h3\u003e\n\u003cp\u003eThe Mollo kit is an identification aid designed for quick field checks and retail use, not a substitute for comprehensive gemological certification. It reliably distinguishes diamonds from many common simulants but may not identify treatments or provide carat, clarity, or colour grading.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGreat for separating diamonds from glass, crystal, and many simulants.\u003c\/li\u003e\n  \u003cli\u003eNot intended for official grading or certification reports.\u003c\/li\u003e\n  \u003cli\u003eMay be affected by very small stones, mounted settings, or extreme cold.\u003c\/li\u003e\n  \u003cli\u003eBattery performance improves above 10°C; store and test at moderate temperatures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\nWho is this for: Jewellers, pawnshop staff, gem hobbyists, and jewellery retailers who need a portable, easy-to-use tool for on-site diamond checks will find the Mollo Diamond Tester Pen useful. It suits novices who need clear light-and-sound cues and experienced users who want a fast pre-screening device before sending pieces for formal lab analysis. The kit includes the diamond tester, a matching torch, and a battery, and comes from factory-direct stock with inspection and a replacement or refund option if defects are found. Follow the included warm-up and contact instructions for the most consistent results and remember this tool complements—rather than replaces—full gemological testing when certification is required.\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the Mollo Diamond Tester need calibration?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Basic calibration is built into the device; follow the startup check ensuring one light is lit. No separate calibration tools are normally required.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I test mounted stones with this pen?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, small mounted stones can be tested, but ensure full probe contact and be aware settings or metal may affect readings.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Mollo","offers":[{"title":"Default Title","offer_id":55294493131089,"sku":"B0BKSSXXDK","price":41.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/mollo-tester-front-view.jpg?v=1791931364"},{"product_id":"valkynos-diamond-tester-kit-thermal-conductivity-pen-tester-with-60x-loupe-365nm-uv-light-portable-case","title":"Valkynos Diamond Tester Kit — Thermal Conductivity Pen Tester with 60X Loupe \u0026 365nm UV Light, Portable Case","description":"\u003cp\u003e\u003cstrong\u003eThe Valkynos Diamond Tester Kit is a compact thermal-conductivity pen tester with a 60X loupe and UV light designed to quickly identify real diamonds and separate them from common simulants.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis portable kit brings practical, on-the-spot diamond screening to collectors, resellers, hobbyists and anyone inspecting jewellery. Combining a sensitive thermal-conductivity probe, a 365nm UV lamp, audible and LED indicators, and a 60X magnifying loupe, the set is tuned for fast, repeatable checks on loose stones and mounted pieces. The included hard case and 9V battery make it ready for travel and field use.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this tester tell diamonds apart from other stones?\u003c\/h3\u003e\n\u003cp\u003eThe pen detects how quickly heat moves through a stone: diamonds conduct heat differently than many simulants. When the probe touches a gem, the unit evaluates thermal response and signals a diamond-like reading with lights and sound.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThermal-conductivity sensing differentiates diamonds from cubic zirconia, glass, and similar simulants.\u003c\/li\u003e\n  \u003cli\u003eClear LED indicators plus an audible tone convey results instantly.\u003c\/li\u003e\n  \u003cli\u003eBuilt-in calibration routines stabilise readings for repeat testing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan it test small or mounted diamonds accurately?\u003c\/h3\u003e\n\u003cp\u003eYes — the Valkynos tester can register stones as small as 2 points (0.02 ct) and is designed to inspect set jewellery like rings and earrings. For most mounted items, avoid large metal contact that can interfere with heat transfer during the check.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDetects diamonds down to 0.02 carats (2 points).\u003c\/li\u003e\n  \u003cli\u003eWorks on loose gems and jewellery settings when testing technique minimizes metal interference.\u003c\/li\u003e\n  \u003cli\u003e60X loupe helps position the probe and inspect setting details before testing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat does the UV light add to the testing process?\u003c\/h3\u003e\n\u003cp\u003eThe integrated 365nm UV lamp reveals fluorescence in diamonds and certain stones, offering an additional visual clue to support thermal readings. Fluorescence is not definitive on its own, but combined with thermal results it improves confidence in a quick assessment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUV can highlight fluorescence patterns common in some natural diamonds.\u003c\/li\u003e\n  \u003cli\u003eUseful for cross-checking ambiguous thermal readings.\u003c\/li\u003e\n  \u003cli\u003eHandy for visual inspection and photography of fluorescence under UV light.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The Valkynos Diamond Tester Kit is aimed at jewellery enthusiasts, estate sellers, pawnbrokers, gemstone hobbyists, and small-scale resellers who need a fast, portable way to screen diamonds and apparent diamonds without laboratory equipment. Note that this tester relies on thermal conductivity and cannot reliably distinguish moissanite from diamond; for absolute identification or grading, a gemological lab or additional electrical conductivity testing is recommended. The kit’s loupe, hard case, and included battery make it a convenient field tool for preliminary authentication and day-to-day inspection tasks.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the kit reliably identify moissanite?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. Because moissanite shares similar thermal properties with diamond, this thermal-conductivity tester cannot reliably distinguish moissanite from diamond.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does it work on mounted jewellery and very small diamonds?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It can test mounted pieces and detect diamonds as small as 0.02 ct, though metal contact should be minimized for best accuracy.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Valkynos","offers":[{"title":"Default Title","offer_id":55297945174353,"sku":"B0G58TQ5RX","price":56.56,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/valkynos-tester-front-angle.jpg?v=1791961612"},{"product_id":"valkynos-diamond-tester-pen-thermal-gem-checker-with-365nm-uv-light-portable-0-5s-detection-battery-included","title":"Valkynos Diamond Tester Pen — Thermal Gem Checker with 365nm UV Light, Portable 0.5s Detection (Battery Included)","description":"\u003cp\u003e\u003cstrong\u003eValkynos Professional Diamond Tester Pen is a compact thermal-conductivity gem checker with a 365nm UV light that gives a rapid 0.5‑second indication to help distinguish real diamonds from common simulants.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis pocket-sized tester combines a sensitive thermal sensor, built-in ultraviolet lamp, and simple LED\/buzzer feedback to help hobbyists, buyers, and sellers make on-the-spot assessments of loose stones and mounted gems. It warms up quickly, fits a protective leather pouch, and runs on an included battery for immediate use. While it does not replace a full gemological lab report, it provides fast, practical clues to guide buying, selling, or cataloging jewellery.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the Valkynos pen tell a diamond from a simulator?\u003c\/h3\u003e\n\u003cp\u003eThe pen uses thermal conductivity to detect how quickly a stone transfers heat; diamonds conduct heat faster than many common imitations. When the conductive tip touches the gem and conditions are correct, the device signals authenticity with a red LED and an audible beep.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAdvanced thermal sensor distinguishes diamonds from crystal and cubic zirconia.\u003c\/li\u003e\n  \u003cli\u003eIndicator: red LED flash plus buzzer when a diamond is detected.\u003c\/li\u003e\n  \u003cli\u003eMinimum reliable stone size: about 0.02 carats and larger.\u003c\/li\u003e\n  \u003cli\u003eRequires 25 seconds warm-up before first use for steady readings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat extra information does the 365nm UV light provide?\u003c\/h3\u003e\n\u003cp\u003eThe integrated 365nm ultraviolet lamp checks for fluorescence, which can be a useful secondary signal when assessing a stone. Different materials fluoresce in different ways under UV, so this feature helps you spot inconsistent behavior between what thermal testing indicates and how the stone reacts visually.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBuilt-in UV reveals fluorescence patterns that vary by material.\u003c\/li\u003e\n  \u003cli\u003eUseful for cross-checking thermal results on ambiguous stones.\u003c\/li\u003e\n  \u003cli\u003eQuick visual cue: some diamonds fluoresce blue, others show little reaction.\u003c\/li\u003e\n  \u003cli\u003eNon-destructive: safe for short inspections when used as directed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the best practices to get accurate readings?\u003c\/h3\u003e\n\u003cp\u003eAccuracy depends on simple handling and environmental factors. Hold the conductive panel with a bare finger, test at room temperature between 10–35°C, and avoid testing through heavily insulated settings or while wearing gloves. Following these steps helps the sensor reach its calibrated response quickly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHold the top conductive panel with a bare finger—no gloves.\u003c\/li\u003e\n  \u003cli\u003eTest stones at room temperature (10–35°C) for consistent results.\u003c\/li\u003e\n  \u003cli\u003eTip the jewel vertically 90 degrees when contacting the tip for best contact.\u003c\/li\u003e\n  \u003cli\u003eUse on stones 0.02 carats and larger for reliable detection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow portable and serviceable is the Valkynos tester?\u003c\/h3\u003e\n\u003cp\u003eThe device is designed for on-the-go use: it’s compact, includes a leather protective pouch, and comes with a ready-to-use battery. Valkynos also provides straightforward after-sales support, including a 30-day unconditional return or exchange and assistance for battery replacement from commonly available types in the U.S.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompact pen form factor fits a pocket or jewellery bag.\u003c\/li\u003e\n  \u003cli\u003eProtective leather pouch and rigid case for travel and storage.\u003c\/li\u003e\n  \u003cli\u003eBattery included so the tester is ready from first use.\u003c\/li\u003e\n  \u003cli\u003e30-day return or exchange policy and replacement battery support.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Valkynos Professional Diamond Tester Pen suits casual buyers, estate sellers, jewellers needing quick field checks, and collectors who want a fast, portable verification tool. It’s ideal as a first-line tester to flag items that need further lab-grade certification, and it’s simple enough for novices while offering the thermal sensitivity experienced users rely on for routine screening.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How fast does the Valkynos tester give a result?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The device responds in about 0.5 seconds after proper contact, following its 25‑second warm-up period.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can it detect very small diamonds?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It reliably detects diamonds from approximately 0.02 carats and larger; smaller stones may give inconsistent readings.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Valkynos","offers":[{"title":"Default Title","offer_id":55298025587025,"sku":"B0F9PM2YGV","price":51.79,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/valkynos-front-view-pen.jpg?v=1791963060"},{"product_id":"gain-express-diamond-tester-pen-professional-diamond-moissanite-tester-with-uv-light-and-thermal-sensor","title":"Gain Express Diamond Tester Pen — Professional Diamond \u0026 Moissanite Tester with UV Light and Thermal Sensor","description":"\u003cp\u003e\u003cstrong\u003eThe GAIN EXPRESS Diamond Tester Pen is a handheld professional tool that distinguishes natural diamonds from common simulants like cubic zirconia and moissanite using thermal sensing and UV fluorescence detection.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eCompact and battery-efficient, this gem tester combines a thermal sensor with ultraviolet light to give quick, reliable readings for loose stones and mounted jewellery. Designed for both beginners and experienced jewellers, it includes a testing platform, protective vinyl pouch, and a clear instruction manual so you can get accurate results right away. The unit’s audible alerts and multi-level volume control improve usability in busy retail or pawnshop environments.\u003c\/p\u003e\n\n\u003ch3\u003eHow accurately does it tell diamonds from simulants?\u003c\/h3\u003e\n\u003cp\u003eThe tester uses a thermal sensor optimised to detect how quickly heat dissipates through a stone, a method that reliably separates natural diamonds from many imitators. It also uses UV light to reveal fluorescence patterns that help confirm a diamond’s character. While extremely useful for initial screening, it is not a substitute for laboratory certificates for high-value claims.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDetects natural diamonds down to approximately 2 points (0.02 ct).\u003c\/li\u003e\n  \u003cli\u003eUnresponsive to common simulants such as cubic zirconia and many glass imitations.\u003c\/li\u003e\n  \u003cli\u003eUV fluorescence mode highlights reaction differences for further verification.\u003c\/li\u003e\n  \u003cli\u003eAudible warning prevents accidental contact with metal settings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat features make it easy to use in a shop setting?\u003c\/h3\u003e\n\u003cp\u003eThe pen’s small footprint and low battery draw make it easy to carry and keep powered during a workday. Multi-level volume controls let you tune alerts to a busy showroom or a quiet consultation area. A testing platform for loose stones and a vinyl pouch keep accessories organized and protect the probe between uses.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSingle-button operation for quick, repeatable tests.\u003c\/li\u003e\n  \u003cli\u003eMulti-level volume calibration adapts to noisy environments.\u003c\/li\u003e\n  \u003cli\u003eOption to use an AC adapter for extended indoor testing sessions.\u003c\/li\u003e\n  \u003cli\u003eIncludes protective pouch and instruction manual for fast setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan novices use this pen confidently?\u003c\/h3\u003e\n\u003cp\u003eYes. The unit is intended for both novices and experts: the controls are straightforward and the included manual explains procedures and best practices. Clear audible and visual cues minimize user errors, and the testing platform stabilises loose gems for consistent readings. For high-value or questionable stones, combine results with gemological appraisal or lab certification.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSimple one-button start reduces operator mistakes.\u003c\/li\u003e\n  \u003cli\u003eTesting platform stabilises small or round stones for repeatable readings.\u003c\/li\u003e\n  \u003cli\u003eManual explains UV fluorescence interpretation and probe handling tips.\u003c\/li\u003e\n  \u003cli\u003eAudible metal-contact alerts protect the probe and avoid false readings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the practical limitations to be aware of?\u003c\/h3\u003e\n\u003cp\u003eAlthough very effective at screening, the pen cannot fully replace professional gemological analysis or grading certificates for insurance or resale of high-value items. Certain treatments, coatings, and advanced simulants may affect readings, so interpret results in context. Use the device as a fast, reliable first step in a multi-step verification process.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNot a substitute for lab-issued certificates on expensive stones.\u003c\/li\u003e\n  \u003cli\u003eSome surface coatings or settings can influence thermal or UV responses.\u003c\/li\u003e\n  \u003cli\u003eVery small stones under the device’s detection threshold may require magnification or specialist equipment.\u003c\/li\u003e\n  \u003cli\u003eRecommended to follow up uncertain results with gemological testing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Retail jewellers, pawnshop operators, estate buyers, gem hobbyists, and anyone who needs a portable, user-friendly tool to screen diamonds and common simulants. The GAIN EXPRESS Diamond Tester Pen is particularly useful for quick in-store verification and for field use when a fast, initial assessment is needed before pursuing formal lab confirmation.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the pen tell moissanite from diamond?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the thermal sensor and UV mode reliably differentiate most moissanite from natural diamonds, but some advanced simulants may need further lab testing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does it work on mounted jewellery?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, it works on mounted pieces; use the metal-contact audible warning to avoid false readings from the setting.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Gain Express","offers":[{"title":"Default Title","offer_id":55298224783697,"sku":"B00MNEB0U0","price":76.72,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/gain-express-diamond-tester-front-view.jpg?v=1791965008"},{"product_id":"presidium-pgi-handheld-gem-indicator-diamond-colored-gem-tester-usb-rechargeable-led-readout","title":"Presidium PGI Handheld Gem Indicator — Diamond \u0026 Coloured Gem Tester, USB Rechargeable, LED Readout","description":"\u003cp\u003e\u003cstrong\u003eThe Presidium PGI Handheld Gem Indicator is a portable tester that distinguishes diamonds from many coloured gemstones and delivers clear results in seconds.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe PGI combines a retractable thermoelectric probe, colour input function, and a digital LED readout to give jewellers, appraisers, and hobbyists rapid, reliable identification across an extended list of 31 gemstones. Lightweight and ergonomic, the unit runs on USB power or internal battery and is built for bench and field use where quick decisions matter.\u003c\/p\u003e\n\n\u003ch3\u003eHow fast and accurate are the PGI test results?\u003c\/h3\u003e\n\u003cp\u003eResults appear on the LED screen in under six seconds for most stones, enabling swift sorting and preliminary identification without removing the setting in many cases. The retractable thin probe maintains consistent contact pressure, reducing user-induced variation and improving repeatability.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTypical readout time: \u0026lt;6 seconds for most gems\u003c\/li\u003e\n  \u003cli\u003eProbe maintains steady pressure for consistent measurements\u003c\/li\u003e\n  \u003cli\u003eDigital LED display shows clear, immediate identification\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich gemstones does the PGI differentiate and how does the colour input help?\u003c\/h3\u003e\n\u003cp\u003eThe PGI is calibrated to test 31 common gemstones, including diamonds and frequently encountered coloured stones. The colour input option narrows down ambiguous responses by factoring visible colour, which increases the precision of the suggested identification.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSupports identification across 31 gemstone types\u003c\/li\u003e\n  \u003cli\u003eColour input reduces misidentification among visually similar stones\u003c\/li\u003e\n  \u003cli\u003eUseful for separating treated or similar-composition gems during screening\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat design features make the PGI practical for daily use?\u003c\/h3\u003e\n\u003cp\u003eBuilt with an ergonomic chrome-brushed grip and a slim retractable probe tip, the PGI is comfortable to hold for extended sessions and able to reach small or tight settings. The USB port allows flexible power options, and the compact handheld form fits easily in a tool kit or bench drawer.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eErgonomic grip reduces hand fatigue\u003c\/li\u003e\n  \u003cli\u003eRetractable thin probe for precise contact on small facets\u003c\/li\u003e\n  \u003cli\u003eUSB port for alternative power sources and easy recharging\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan I rely on the PGI for professional workflows?\u003c\/h3\u003e\n\u003cp\u003eWhile not a replacement for exhaustive laboratory analysis, the PGI is an industry-trusted field tester that speeds up routine screening and triage. Many professionals use it as an initial filtering tool before sending samples for advanced gemological testing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIdeal as a rapid screening device in professional settings\u003c\/li\u003e\n  \u003cli\u003eHelps prioritize stones for laboratory analysis\u003c\/li\u003e\n  \u003cli\u003eDurable design for daily bench and on-site use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Presidium PGI is aimed at jewellery retailers, gemologists, pawn and estate buyers, repair technicians, and serious hobbyists who need a quick, portable method to distinguish diamonds from common coloured gemstones. It’s best used as a fast, reliable first step in identification, complementing more detailed laboratory methods when certainty is required.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long does a PGI test take?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Most tests return a result in under six seconds using the retractable probe and LED readout.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the PGI replace laboratory gem testing?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No — it’s a fast screening tool for routine identification, not a substitute for full lab analysis.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Presidium","offers":[{"title":"Default Title","offer_id":55298310209873,"sku":"B06X979666","price":405.97,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/presidium-pgi-front-view.jpg?v=1791965698"},{"product_id":"tekcoplus-diamond-moissanite-tester-professional-2pt-combo-thermal-probe-metal-detector","title":"TEKCOPLUS Diamond \u0026 Moissanite Tester Professional 946 ml Combo — Thermal Probe \u0026 Metal Detector","description":"\u003cp\u003e\u003cstrong\u003eTEKCOPLUS Diamond Tester is a compact professional meter that distinguishes diamonds, moissanite, metals and other gemstones quickly and reliably down to 2 points.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis handheld tester combines a sensitive thermal probe, an integrated metal detector and audible alerts to help jewellers, pawnshops and hobbyists verify gemstones on the spot. With a fast warm-up time and a fine elastic-tipped probe, the device is engineered to save time while giving clear, repeatable feedback about whether a stone behaves thermally like diamond or moissanite, or if the item contains metal beneath the stone.\u003c\/p\u003e\n\n\u003ch3\u003eHow quickly can I test a stone with this device?\u003c\/h3\u003e\n\u003cp\u003eThe TEKCOPLUS tester reaches operating temperature in about 25 seconds and signals readiness with a beep, so you can begin testing almost immediately. Each measurement is fast, allowing multiple checks per hour without long delays.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWarm-up approximately 25 seconds for immediate use\u003c\/li\u003e\n  \u003cli\u003eAudible beep when the unit is ready\u003c\/li\u003e\n  \u003cli\u003eFast probe measurements for rapid throughput\u003c\/li\u003e\n  \u003cli\u003eSuitable for small stones down to 2pt\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat types of materials can it distinguish?\u003c\/h3\u003e\n\u003cp\u003eThis meter is calibrated to distinguish diamonds, moissanite and many simulants based on thermal and electrical response, and the built-in metal detector detects metal under settings that might affect results. It’s meant to help identify likely diamonds and moissanite, not to replace full laboratory certification.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDiamond vs. moissanite differentiation through thermal response\u003c\/li\u003e\n  \u003cli\u003eDetection of metal beneath stones to avoid false readings\u003c\/li\u003e\n  \u003cli\u003eWorks on loose or mounted gems (probe contact required)\u003c\/li\u003e\n  \u003cli\u003eFine tip for testing small or tight-set stones (2pt and larger)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow accurate and easy to use is the tester for daily work?\u003c\/h3\u003e\n\u003cp\u003eThe device offers professional-level accuracy for quick screening with a fine, elastic-tipped probe to contact small facets without damage. User-friendly features like audible alerts and a straightforward probe make it ideal for busy counters and on-site inspections.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFine elastic tip for delicate contact and small stones\u003c\/li\u003e\n  \u003cli\u003eAudible beep confirms readiness and reduces wait time\u003c\/li\u003e\n  \u003cli\u003eCompact, handheld design for counter or field use\u003c\/li\u003e\n  \u003cli\u003eOperates on common AAA cells, NiMH or optional AC adapter (not included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I know about powering and maintaining the tester?\u003c\/h3\u003e\n\u003cp\u003eThe tester runs on AAA alkaline or NiMH batteries, or an AC power adapter can be used when available. Regular probe cleaning and avoiding rough treatment of the tip will keep readings consistent and extend the unit’s working life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUses AAA alkaline or NiMH batteries (not included)\u003c\/li\u003e\n  \u003cli\u003eOptional AC adapter compatible (not included)\u003c\/li\u003e\n  \u003cli\u003eKeep probe tip clean for accurate readings\u003c\/li\u003e\n  \u003cli\u003eAvoid dropping or excessive pressure on the elastic tip\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The TEKCOPLUS Diamond \u0026amp; Moissanite Tester is designed for professional jewellers, pawnshop operators, estate buyers, gem hobbyists and anyone who needs quick, reliable gemstone screening. It’s particularly useful when you require a compact, field-ready instrument that identifies diamonds and moissanites, detects metal beneath settings, and tests very small stones down to 2 points without the delay of lab services.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this tester tell diamonds from moissanite?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it differentiates diamonds and moissanite using thermal\/electrical response, suitable for quick screening.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What power sources does the tester use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It runs on AAA alkaline or NiMH batteries and accepts an optional AC adapter (batteries\/adapter not included).\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"TEKCOPLUS","offers":[{"title":"Default Title","offer_id":55298756346193,"sku":"B01MRYG53O","price":141.94,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/tekcoplus-front-view-tester-kit.jpg?v=1791969081"},{"product_id":"kooingtech-diamond-tester-refractometer-rhg181-1-30-1-81-ri-range-portable-led-kit","title":"KooingTech Diamond Tester Refractometer RHG181 — 1.30–1.81 RI Range, Portable LED Kit","description":"\u003cp\u003e\u003cstrong\u003eKooingTech Diamond Tester RHG181 is a compact, handheld refractometer that measures gemstone refractive index from 1.30 to 1.81 RI for fast, non-destructive gem identification.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe KooingTech RHG181 refractometer is built to help jewellers, gemologists and hobbyists quickly determine optical properties of gemstones and small solid materials. Housed in a lightweight ABS body and supplied with a 3 mL refractive index fluid, an LED torch and an English manual, the unit balances portability with accuracy. It reads both single and double refracting stones and conserves battery power for extended field use.\u003c\/p\u003e\n\n\u003ch3\u003eHow accurate and wide is the refractive index range?\u003c\/h3\u003e\n\u003cp\u003eThe RHG181 covers a broad RI span from 1.30 to 1.81, which includes most common gem species. Accuracy is supported by an adjustable eyepiece and clearly marked shading line scale, enabling reliable readings when used with proper technique.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasurement range: 1.30–1.81 refractive index (RI)\u003c\/li\u003e\n\u003cli\u003eAdjustable eyepiece for precise scale focusing\u003c\/li\u003e\n\u003cli\u003eWorks for single and double refracting gems\u003c\/li\u003e\n\u003cli\u003eRequires flat contact area (≥2 mm diameter) for correct reading\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes with the tester and how do I prepare a sample?\u003c\/h3\u003e\n\u003cp\u003eThe kit includes the refractometer unit, a small electric torch (AA battery not included), a 3 mL vial of refractive index fluid and an English instruction manual. Proper sample preparation — cleaning the stone, applying a thin layer of fluid to the prism and seating the gem flat — is essential for accurate results.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIn-box: refractometer, LED torch, 3 mL RI fluid, manual\u003c\/li\u003e\n\u003cli\u003eSuggested prep: clean stone and prism before testing\u003c\/li\u003e\n\u003cli\u003eUse a drop of RI fluid to bridge prism and gem for optical contact\u003c\/li\u003e\n\u003cli\u003eEnsure gem’s touching surface is flat and ≥2 mm in diameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow portable and durable is the RHG181 for everyday use?\u003c\/h3\u003e\n\u003cp\u003eDesigned in ABS plastic with a compact footprint (approx. 13 × 6 × 3.5 cm), the unit is light enough to carry between workshops, trade shows or field visits. Low power consumption lengthens runtime, while factory quality controls aim to provide consistent performance over extended use.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSize: 13 × 6 × 3.5 cm (approx. 5.1 × 2.4 × 1.4 in)\u003c\/li\u003e\n\u003cli\u003eWeight: approx. 721 g for stable handling\u003c\/li\u003e\n\u003cli\u003eABS construction for impact resistance and longevity\u003c\/li\u003e\n\u003cli\u003eLED torch for illumination; AA battery not included\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan it identify specific gemstones and what are the limits?\u003c\/h3\u003e\n\u003cp\u003eThe RHG181 helps narrow stone identity by RI value and by revealing single or double refraction, making it useful for ruby, sapphire, emerald, tourmaline, zircon and many others. It does not replace full gemological lab reports; very small stones, opaque materials or unusual inclusions can limit accuracy.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUseful for: diamond alternatives, sapphire, ruby, emerald, tourmaline, zircon and more\u003c\/li\u003e\n\u003cli\u003eIdentifies single vs. double refracting specimens\u003c\/li\u003e\n\u003cli\u003eNot suitable for highly rounded or irregular contact surfaces\u003c\/li\u003e\n\u003cli\u003eExtremely small (\u0026lt;2 mm) samples may not yield valid readings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The KooingTech RHG181 refractometer is ideal for independent jewellers, gem traders, lapidary hobbyists and students who need a straightforward, portable tool for routine refractive index checks. If you require a compact, easy-to-operate device to support quick gem screening, occasional verification or educational demonstrations, this unit offers an accessible balance of range, accuracy and field-ready design. Note: units may be shipped in two slightly different model styles at random; ensure this is acceptable before ordering.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What RI range does the KooingTech RHG181 cover?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It measures refractive index values from 1.30 to 1.81 RI, covering most common gemstones.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need batteries and is the fluid included?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The LED torch requires one AA battery (not included); a 3 mL vial of refractive index fluid is included.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"KooingTech","offers":[{"title":"Default Title","offer_id":55299027829073,"sku":"B0DGLM4Y6W","price":106.64,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/kooingtech-rhg181-front-panel.jpg?v=1791971154"},{"product_id":"tekcoplus-polariscope-led-gem-tester-desktop-with-rotatable-glass-filters-magnifier","title":"TEKCOPLUS Polariscope LED Gem Tester — Desktop with Rotatable Glass Filters, Magnifier","description":"\u003cp\u003e\u003cstrong\u003eThe TEKCOPLUS Polariscope is a desktop LED instrument that quickly reveals whether a gemstone is isotropic or anisotropic by using rotatable glass polarizing filters for clear, hands‑on gem identification.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eCompact but robust, this bench polariscope combines a built‑in AC LED light source with a glass rotatable filter assembly and magnifying viewing area so jewellers, gemologists and serious hobbyists can examine optical behavior, strain and homogeneity in transparent stones. It’s designed for repeated bench use: the steady LED illumination, easy rotation of polarizers and a stable tabletop footprint make routine identification and comparison fast and repeatable without relying on ambient light.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the TEKCOPLUS polariscope help distinguish gemstones?\u003c\/h3\u003e\n\u003cp\u003eThe polariscope shows whether light passing through a stone is altered by internal structure. Isotropic stones (single refraction) remain dark or unchanged when polarizers cross, while anisotropic stones (double refraction) display light and dark patterns or interference figures when rotated.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRotatable glass polarizers let you observe changes as you turn the filters.\u003c\/li\u003e\n  \u003cli\u003eLED illumination provides consistent, high‑contrast light for clear observations.\u003c\/li\u003e\n  \u003cli\u003eMagnified viewing area helps detect strain lines, birefringence and inhomogeneity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat kinds of gems can I test with this bench polariscope?\u003c\/h3\u003e\n\u003cp\u003eIt’s suitable for transparent to translucent gems such as diamonds, moissanite, quartz varieties (including amethyst), and many synthetic materials. The unit is especially useful for spotting anisotropy, internal strain and non‑homogeneous growth that help narrow identification.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDiamonds and moissanite: reveal strain and birefringence differences.\u003c\/li\u003e\n  \u003cli\u003eAmethyst and quartz: show anisotropic behavior and growth zones.\u003c\/li\u003e\n  \u003cli\u003eSynthetics vs. naturals: can indicate homogeneity or telltale strain patterns.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is it to use on the bench and what features improve workflow?\u003c\/h3\u003e\n\u003cp\u003eDesigned for tabletop use, the TEKCOPLUS polariscope plugs into AC power and gives immediate bright light without warm‑up. The glass rotatable filters are smooth to turn, and the viewing field is sized for typical mounted stones and loose gems, making rapid sequential testing practical for production or appraisal settings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAC powered LED eliminates dependency on batteries or variable ambient light.\u003c\/li\u003e\n  \u003cli\u003eStable base reduces movement while rotating polarizers or repositioning stones.\u003c\/li\u003e\n  \u003cli\u003eClear glass filters and magnified window increase observation accuracy.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect in terms of results and limitations?\u003c\/h3\u003e\n\u003cp\u003eThe polariscope reliably indicates optical behavior (isotropic vs. anisotropic and visible strain) but does not provide chemical composition or refractive index values. Use it alongside refractometers, microscopes and spectroscopes for definitive identification when needed.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGood for screening and supporting identification workflows.\u003c\/li\u003e\n  \u003cli\u003eNot a substitute for advanced spectroscopy or lab certification.\u003c\/li\u003e\n  \u003cli\u003eBest used on clean, properly oriented samples for clear readings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: bench jewellers, gemologists, jewellery repair specialists, and dedicated hobbyists who need a reliable, repeatable tabletop polariscope for routine optical testing. If you regularly sort stones, check for strain or want a quick method to separate singly and doubly refractive gems, the TEKCOPLUS Polariscope offers solid performance, simple operation and dependable LED lighting ideal for daily use.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the polariscope need batteries?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No, the TEKCOPLUS polariscope uses an AC‑powered LED light, so it runs from mains power without batteries.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can it tell moissanite from diamond?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It helps differentiate by showing birefringence and strain patterns, but confirmatory tests like refractive index or spectroscopy are recommended.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"TEKCOPLUS","offers":[{"title":"Default Title","offer_id":55299042017617,"sku":"B092VKJ7ZF","price":136.35,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/tekcoplus-polaroid-front-panel-view.jpg?v=1791971248"},{"product_id":"gemoro-testerossa-diamond-moissanite-tester-black-handheld-4-way-gem-tester-with-uv-conductivity-kit-with-charging-stand","title":"GemOro Testerossa Diamond \u0026 Moissanite Tester — Black handheld 4-way gem tester with UV \u0026 conductivity, kit with charging stand","description":"\u003cp\u003e\u003cstrong\u003eThe GemOro Testerossa is a handheld, professional 4-way gemstone tester that quickly distinguishes mined diamonds, moissanite, white sapphire and other stones using LED, UV and conductivity signals.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eEngineered for jewellers, pawn shops and serious collectors, the Testerossa combines UV-F1 moissanite detection with colour-coded LED feedback, voice or ringtone alerts and a retractable precision probe. The tool comes as a complete kit—charging stand, magnifier attachment, rechargeable batteries and carrying case—so you can test loose stones, mounted jewellery and watch crystals on the bench or at a sale table.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the Testerossa detect different gemstones?\u003c\/h3\u003e\n\u003cp\u003eThe Testerossa uses multiple sensing systems at once: conductivity detection for moissanite, LED colour cues, and a UV channel that senses fluorescence. The device compares the signals to determine likely identities instead of relying on a single method, which improves practical accuracy for common gem types.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConductivity circuitry targets electrically conductive moissanite, including low‑conductivity varieties.\u003c\/li\u003e\n  \u003cli\u003eUV-F1 fluorescence helps flag stones that react under near-UV lighting.\u003c\/li\u003e\n  \u003cli\u003eColour-coded LEDs indicate Diamond (green), Moissanite (blue), Sapphire (pink) and Metal (red).\u003c\/li\u003e\n  \u003cli\u003eCZ typically shows no reaction, aiding differentiation from other simulants.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat features make it suitable for professional use?\u003c\/h3\u003e\n\u003cp\u003eThe Testerossa is built for frequent handling and quick, repeatable readings. An ergonomic finger grip and retractable precision probe let you position the tip precisely on faceted edges or table facets while impact-resistant housing protects the electronics in busy environments.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eErgonomic grip and retractable probe for controlled contact on small stones.\u003c\/li\u003e\n  \u003cli\u003eProgrammable voice alerts in nine languages or selectable ringtones for operator preference.\u003c\/li\u003e\n  \u003cli\u003eFast warm-up and stable readings to keep throughput high at trade shows or in-store testing.\u003c\/li\u003e\n  \u003cli\u003eDurable casing resists daily knocks and pocket carry during buying trips.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat comes in the complete Testerossa kit and how do you use it right away?\u003c\/h3\u003e\n\u003cp\u003eThe package includes everything to start testing immediately out of the box. Alongside the tester you get the UltraDock 3 charging stand, a loose-stone holder and magnifier attachment so you can stabilise samples and inspect results closely during each reading.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eUltraDock 3 charging stand and USB‑C cord for convenient recharging.\u003c\/li\u003e\n  \u003cli\u003eLoose stone holder and magnifier for steady, visible testing of small gems.\u003c\/li\u003e\n  \u003cli\u003eThree AAA rechargeable batteries plus AC adapter for backup power options.\u003c\/li\u003e\n  \u003cli\u003eProtective carrying case and cleaning cloth for transport and care.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? The GemOro Testerossa fits professional jewellers, estate buyers, gem dealers and advanced hobbyists who need a fast, portable way to screen common gemstones and simulants. It’s particularly useful when you require quick bench-side decisions or want to triage inventory before sending items for full lab analysis. Note: the Testerossa is optimised for distinguishing mined diamonds, moissanite, white sapphire and similar materials; it is not designed to identify lab-grown diamonds or replace comprehensive gemological reports.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the Testerossa identify lab-grown diamonds?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The Testerossa is designed for mined diamonds, moissanite, sapphires and simulants, not for reliably identifying lab-grown diamonds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does it detect low-conductivity moissanite varieties?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The UV-F1 moissanite technology extends detection to many low-conductivity moissanites, including some Forever One types.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"GemOro","offers":[{"title":"Default Title","offer_id":55299065905489,"sku":"B006PK1OS6","price":359.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/gemoro-front-panel.jpg?v=1791971439"},{"product_id":"tekcoplus-diamond-gemstone-tester-kit-2-in-1-diamond-moissanite-probe-with-metal-detector-fast-warm-up","title":"TEKCOPLUS Diamond \u0026 Gemstone Tester Kit — 2-in-1 Diamond\/Moissanite Probe with Metal Detector, Fast Warm-Up","description":"\u003cp\u003e\u003cstrong\u003eTEKCOPLUS Diamond Tester Jewellery Gem Stone Tester Kit is a professional 2-in-1 instrument that checks diamonds, moissanite, other gemstones and detects unwanted metals quickly and accurately.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eWhether you run a jewellery shop, repair bench or collect gemstones, you need a compact, fast, and dependable tester. This TEKCOPLUS kit brings a metal-detection function together with a thermal\/stone probe so you can screen gems and clear away metallic debris from the work area. The unit warms up in seconds, signals readiness with an audible beep, and uses a fine, elastic-tipped probe to assess small stones down to two points.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the TEKCOPLUS tester distinguish diamonds from moissanite?\u003c\/h3\u003e\n\u003cp\u003eThe device measures differences in thermal conductivity and responds differently for diamonds versus moissanite. Its probe tip is designed for precision on tiny stones, enabling reliable differentiation when used correctly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFine, elastic probe contacts small facets without damage\u003c\/li\u003e\n  \u003cli\u003eThermal sensing tuned for common diamond simulants like moissanite\u003c\/li\u003e\n  \u003cli\u003eClear audible cue and on-device indicators for quick readouts\u003c\/li\u003e\n  \u003cli\u003eWorks on stones as small as 2 pt with careful placement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat role does the integrated metal detector play in daily use?\u003c\/h3\u003e\n\u003cp\u003eThe built-in metal detector helps you find screws, settings, or scrap metal that could confuse gem readings or clutter the bench. It speeds clean-up and reduces false readings caused by nearby metal.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eScans work surfaces to spot unwanted metal pieces\u003c\/li\u003e\n  \u003cli\u003ePrevents false positives by isolating the gem from nearby conductive materials\u003c\/li\u003e\n  \u003cli\u003eMakes bench workflow safer and more organized\u003c\/li\u003e\n  \u003cli\u003ePortable design means you can sweep displays, trays, or boxes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow fast and convenient is the tester for a busy shop?\u003c\/h3\u003e\n\u003cp\u003eStart-up is nearly immediate: the unit reaches operating temperature in about 25 seconds and emits a beep when it’s ready. That rapid warm-up plus simple controls reduces downtime and lets you test many pieces per hour.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWarm-up time approximately 25 seconds for nearly instant readiness\u003c\/li\u003e\n  \u003cli\u003eAudible beep signals when testing can begin—no guesswork\u003c\/li\u003e\n  \u003cli\u003eIntuitive, uncomplicated interface for quick training of staff\u003c\/li\u003e\n  \u003cli\u003eCompact footprint fits on crowded workbenches or retail counters\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow precise is the kit when working with very small gemstones?\u003c\/h3\u003e\n\u003cp\u003eThe probe’s elastic tip and sensitive circuitry make it possible to evaluate small stones reliably when handled with steady contact. Accuracy increases when testing is done on stones isolated from metal and at stable room temperatures.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSensitive enough to test stones from 2 pt upward with proper technique\u003c\/li\u003e\n  \u003cli\u003eElastic probe minimizes slipping and surface damage during contact\u003c\/li\u003e\n  \u003cli\u003eBest results obtained when metal detector is used to remove nearby conductive items\u003c\/li\u003e\n  \u003cli\u003eConsistent results require steady hand placement and brief contact periods\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The TEKCOPLUS Diamond Tester Jewellery Gem Stone Tester Kit is built for jewellers, pawnshops, gem dealers, repair technicians, and serious hobbyists who need a fast, portable way to screen diamonds, identify moissanite and other simulants, and clear metal interference from their workspace. It suits anyone who values quick warm-up, audible readiness cues, and the ability to test very small stones while maintaining bench safety and organization.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can this tester reliably tell diamonds from moissanite?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it uses thermal sensing and a fine probe to differentiate diamonds from moissanite when used correctly and away from interfering metal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How long does the tester take to warm up?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The unit reaches operating temperature in about 25 seconds and signals readiness with an audible beep.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"TEKCOPLUS","offers":[{"title":"Default Title","offer_id":55299154018641,"sku":"B0DCVLSZ91","price":141.94,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/tekcoplus-front-view-unit.jpg?v=1791971878"},{"product_id":"danoplus-diamond-moissanite-tester-combo-professional-handheld-tester-with-audible-and-visual-alarms-25s-warm-up","title":"DANOPLUS Diamond \u0026 Moissanite Tester Combo — Professional Handheld Tester with Audible and Visual Alarms, 25s Warm-Up","description":"\u003cp\u003e\u003cstrong\u003eDANOPLUS Diamond \u0026amp; Moissanite Tester Combo is a compact, professional tester that distinguishes diamonds, moissanite and common imitations using quick warm-up sensing, audible alerts and coloured indicator lights.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis handheld meter combines a sensitive probe, metal-detection logic and an ergonomic grip to give jewellers, gemologists and resellers a fast, portable tool for sorting stones. The unit reaches operating temperature in about 25 seconds, supports around two hours of continuous testing on battery power, and displays clear green\/blue\/orange signals plus an audible beep so results are easy to interpret even in a busy workshop.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the tester tell diamonds from moissanite and fakes?\u003c\/h3\u003e\n\u003cp\u003eThe device evaluates thermal conductivity and uses a high-precision chip to interpret readings. A green indicator with a matching tone signals diamond-like thermal behavior, blue indicates moissanite, and orange flags metal contact or ambiguous results so you can avoid false positives when touching settings.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThermal-sensing probe discriminates by heat transfer characteristics\u003c\/li\u003e\n  \u003cli\u003eColour-coded LEDs: green (diamond), blue (moissanite), orange (metal\/contact)\u003c\/li\u003e\n  \u003cli\u003eAudible alarm reinforces the visual reading for quick decisions\u003c\/li\u003e\n  \u003cli\u003eBuilt-in metal detection prevents misreading when touching mountings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow simple is it to use during daily sorting or appraisals?\u003c\/h3\u003e\n\u003cp\u003eOperation is straightforward: place a finger on the metal contact at the back to complete the circuit, align the probe perpendicular to the stone, and touch the gem with the probe tip. Warm-up takes roughly 25 seconds, after which tests register almost instantly, letting you move through pieces quickly without complex calibration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eOne-finger contact completes the circuit for consistent readings\u003c\/li\u003e\n  \u003cli\u003eProbe designed for small stones and tight settings\u003c\/li\u003e\n  \u003cli\u003eQuick warm-up and immediate visual\/audible feedback\u003c\/li\u003e\n  \u003cli\u003eSimple battery replacement or optional adapter power (adapter not included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the durability and portability features for field use?\u003c\/h3\u003e\n\u003cp\u003eThe tester’s rubberized finish and compact chassis provide a secure grip and bump protection for on-site inspections. It runs approximately two hours on a fresh battery, is light enough to carry in a technician’s kit, and its probe tip is resilient for frequent contact with settings and cabochons.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRubberized, non-slip housing for comfortable handling\u003c\/li\u003e\n  \u003cli\u003eElastic-tipped probe suitable for repeated use on small stones\u003c\/li\u003e\n  \u003cli\u003eAbout 2 hours continuous battery operation per charge\/change\u003c\/li\u003e\n  \u003cli\u003eFast 25-second probe warm-up minimizes downtime\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat limitations should users be aware of?\u003c\/h3\u003e\n\u003cp\u003eWhile highly useful for separating diamonds and moissanite from many simulants, this instrument is not a substitute for full gemological certification. Settings, coatings, extremely small stones or unusual materials can affect thermal readings, so confirm high-value items with complementary tests when necessary.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMay misread stones when probe touches metal mountings — metal-alert helps avoid mistakes\u003c\/li\u003e\n  \u003cli\u003eNot a replacement for lab grading or spectroscopic analysis on valuable gems\u003c\/li\u003e\n  \u003cli\u003eAdapter for external power not included — use batteries or purchase adapter separately\u003c\/li\u003e\n  \u003cli\u003eInterpret ambiguous results with additional gemological tools for certainty\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The DANOPLUS Diamond \u0026amp; Moissanite Tester Combo is aimed at professional jewellers, pawnshop operators, gemologists, estate buyers and jewellery resellers who need a fast, portable device to triage stones on the bench or in the field. It’s also useful for watchmakers and repair technicians who must check mounted gems quickly. For those who need laboratory-grade certification or advanced gem reports, pair this tester with specialized instruments or a gemological lab for final verification.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How fast does the tester warm up and produce a reading?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Warm-up is about 25 seconds; readings are immediate after warm-up, giving quick visual and audible results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the tester misidentify stones when touching metal settings?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The unit includes metal-detection (orange alert) to reduce false positives when probe contacts metal, but confirm high-value stones with further testing.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"DANOPLUS","offers":[{"title":"Default Title","offer_id":55300669899089,"sku":"B093BNSZZP","price":144.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/danoplus-front-view-tester.jpg?v=1791974619"},{"product_id":"presidium-pgt-ii-gem-tester-portable-diamond-moissanite-tester-with-assisted-thermal-calibration-atc-thin-retractable-probe","title":"Presidium PGT II Gem Tester – Portable Diamond \u0026 Moissanite Tester with Assisted Thermal Calibration (ATC), Thin Retractable Probe","description":"\u003cp\u003e\u003cstrong\u003ePresidium PGT II is a portable gemstone tester that uses assisted thermal calibration to identify diamonds, moissanite and 14 other common gemstones accurately in the field.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe Presidium Gem Tester II (PGT II) is a compact, analog thermal tester redesigned for everyday use by jewellers, appraisers and hobbyists. It brings assisted thermal calibration (ATC) so you can quickly adjust the instrument to your testing environment, plus a thinner retractable probe tip for pinpoint contact. The device differentiates diamonds\/moissanites and 16 common gemstones with a clear dial readout, making it a straightforward tool for routine identification tasks.\u003c\/p\u003e\n\n\u003ch3\u003eHow does assisted thermal calibration improve testing accuracy?\u003c\/h3\u003e\n\n\u003cp\u003eATC lets you calibrate the PGT II to local temperature and humidity conditions, reducing false readings that happen when instruments are used under different environmental conditions. Calibration is quick and designed for users without technical training, ensuring the dial reflects your specific testing environment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eGuided calibration steps included with the unit\u003c\/li\u003e\n  \u003cli\u003eCompensates for ambient temperature and handling heat\u003c\/li\u003e\n  \u003cli\u003eHelps maintain consistent readings across different work locations\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCan the PGT II reliably tell diamonds from moissanites?\u003c\/h3\u003e\n\n\u003cp\u003eYes — the PGT II is engineered to distinguish diamonds and moissanites using thermal conductivity differences shown on an analog dial. While thermal testers are a strong first-line test, combining this device with visual inspection or other gemological tools gives the most confident identification.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAnalog dial differentiates high and low thermal conductivity readings\u003c\/li\u003e\n  \u003cli\u003eRetractable thin probe tip improves contact on small stones\u003c\/li\u003e\n  \u003cli\u003eSuitable for quick sorting and preliminary verification\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat gemstones can this tester identify and how easy is it to use?\u003c\/h3\u003e\n\n\u003cp\u003eThe PGT II recognizes up to 16 common gemstones, including diamonds and moissanites, and displays results on a clear, easy-to-read analog dial. Its compact, sturdy design and simple operation make it usable by professionals and beginners; place the probe on the gem and read the dial after calibration.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eIdentifies diamonds, moissanite and 14 other stones\u003c\/li\u003e\n  \u003cli\u003eThin retractable probe for precise placement on small gems\u003c\/li\u003e\n  \u003cli\u003eCompact and portable for bench or field use\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I know about setup, care and shipping effects?\u003c\/h3\u003e\n\n\u003cp\u003eOut of the box, the PGT II may need re-calibration because shipping can affect the device’s baseline. The unit includes instructions for assisted thermal calibration; if you encounter calibration problems, contact the seller for support before returning the product. Routine care involves keeping the probe clean and storing the tester in a dry place.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCalibrate after unpacking and when ambient conditions change\u003c\/li\u003e\n  \u003cli\u003eClean probe tip gently to ensure good thermal contact\u003c\/li\u003e\n  \u003cli\u003eStore in its protective case to preserve accuracy and durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Presidium PGT II suits bench jewellers, pawnshop operators, gemology students, and serious collectors who need a dependable, portable thermal tester for quick identification tasks. It is ideal when you want a durable, easy-to-use instrument with assisted calibration and a fine probe tip for small stones, but it should be part of a broader identification workflow when absolute certainty is required.\u003c\/p\u003e\n\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the PGT II require calibration after shipping?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. Shipping may affect baseline calibration; use the assisted thermal calibration before first use and if results seem inconsistent.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I rely solely on the PGT II to confirm a diamond?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It’s a strong preliminary test for diamonds vs moissanite, but combine with visual inspection or lab testing for definitive identification.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Presidium","offers":[{"title":"Default Title","offer_id":55301903679825,"sku":"B000TD3G8Q","price":358.27,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/files\/presidium-pgt-ii-front-view.jpg?v=1791980719"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1086\/5567\/3681\/collections\/presidium-pgt-ii-front-view_67f8b0e5-ca72-4b93-a528-317738bb3507.jpg?v=1792143656","url":"https:\/\/craftiche.co.uk\/collections\/diamond-testers.oembed?page=2","provider":"Craftiche","version":"1.0","type":"link"}