{"product_id":"professional-diamond-tester-pen-kit-high-accuracy-selector-1","title":"Professional Diamond Tester Pen Kit – High Accuracy Selector","description":"\n\u003ch2\u003eVerify Your Gemstones with Confidence\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eProfessional Diamond Tester Pen Kit\u003c\/strong\u003e is your go-to tool for quickly and accurately identifying real diamonds from simulants. Whether you're a jeweler, gemologist, collector, or just want to authenticate a stone at home, this compact and easy-to-use tester delivers reliable results every time.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Accuracy Detection:\u003c\/strong\u003e Instantly identifies genuine diamonds with precise thermal conductivity testing technology.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLED Light \u0026amp; Audio Indicators:\u003c\/strong\u003e A red LED light illuminates and the audio alert sounds when a real diamond is detected — no guesswork needed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSimple One-Touch Operation:\u003c\/strong\u003e Minimal learning curve; just touch the probe tip to the stone and read the result.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Calibration:\u003c\/strong\u003e Easily adjustable for stones of various sizes, ensuring consistent and accurate readings every time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight \u0026amp; Portable:\u003c\/strong\u003e Slim pen-style design (14 × 4 × 2 cm) fits comfortably in hand and slips easily into a pocket or bag.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eComplete Kit Included:\u003c\/strong\u003e Comes with a dedicated testing platform for loose stones, a protective carrying case, and a detailed user manual.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurable ABS Body:\u003c\/strong\u003e Constructed from high-quality ABS material for long-lasting everyday use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e ABS Plastic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Supply:\u003c\/strong\u003e 1 × 9V DC Battery \u003cem\u003e(not included)\u003c\/em\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eItem Size:\u003c\/strong\u003e 14 × 4 × 2 cm (5.5 × 1.6 × 0.8 in)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Diamond Selector Tester Pen\u003c\/li\u003e\n  \u003cli\u003e1 × Loose Stone Testing Platform\u003c\/li\u003e\n  \u003cli\u003e1 × Protective Carrying Case\u003c\/li\u003e\n  \u003cli\u003e1 × User Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCare \u0026amp; Maintenance Tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eAlways replace the probe sheath when not in use to protect the sensitive tip.\u003c\/li\u003e\n  \u003cli\u003eReplace the battery promptly when the indicator light dims.\u003c\/li\u003e\n  \u003cli\u003eRemove the battery if storing the device for an extended period.\u003c\/li\u003e\n  \u003cli\u003eFor best accuracy, perform a calibration check at least once a year.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eRelated Products You May Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/1-percent-better-every-day-motivational-canvas-wall-poster-inspirational-quote\"\u003e\"1% Better Every Day\" Motivational Canvas Poster | Wall Art\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/60-and-fabulous-rose-gold-satin-sash-60th-birthday-party-accessory-women\"\u003e\"60 \u0026amp; Fabulous\" Rose Gold Satin Sash – 60th Birthday Gift\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more information on jewelry authenticity and gemstone standards, visit the \u003ca href=\"https:\/\/www.nist.gov\/topics\/forensic-science\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eNIST Forensic Science resource\u003c\/a\u003e for trusted measurement and testing guidance.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: How does the diamond tester pen work?\u003c\/h4\u003e\n\u003cp\u003eA: The diamond tester pen works by measuring thermal conductivity. Real diamonds conduct heat differently than glass, cubic zirconia, and other simulants. When the probe tip makes contact with a genuine diamond, the device triggers both a red LED light and an audio alert, confirming authenticity instantly.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does the diamond tester kit come with a battery?\u003c\/h4\u003e\n\u003cp\u003eA: The kit does not include a battery. You will need one standard 9V DC battery to power the diamond selector tester pen. Batteries are widely available at most hardware or convenience stores.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Can this tester be used on loose stones as well as mounted jewelry?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The kit includes a dedicated loose stone testing platform, making it easy to test unmounted gems. The probe tip can also be carefully applied to stones set in jewelry for on-the-spot verification.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this diamond tester accurate for all diamond sizes?\u003c\/h4\u003e\n\u003cp\u003eA: The tester features simple calibration that accommodates stones of various sizes, from small accent diamonds to larger center stones, ensuring accurate and reliable readings across the board.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"How does the diamond tester pen work?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The diamond tester pen works by measuring thermal conductivity. Real diamonds conduct heat differently than glass, cubic zirconia, and other simulants. 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