{"product_id":"professional-diamond-tester-pen-kit-jewelry-selector","title":"Professional Diamond Tester Pen Kit | High-Accuracy Selector","description":"\n\u003ch2\u003eIdentify Real Diamonds with Confidence\u003c\/h2\u003e\n\u003cp\u003eWhether you're a jeweler, gemologist, or jewelry enthusiast, this \u003cstrong\u003eProfessional Diamond Tester Pen Kit\u003c\/strong\u003e gives you fast, accurate results at your fingertips. Featuring both LED light and audio indicators, this compact selector helps you distinguish genuine diamonds from simulants in seconds — no guesswork, no lab required.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Accuracy Detection:\u003c\/strong\u003e Reliable thermal conductivity testing delivers consistent, trustworthy readings on stones of all sizes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Indication System:\u003c\/strong\u003e Red LED light illuminates \u003cem\u003eand\u003c\/em\u003e an audio alert sounds when a genuine diamond is detected — making results impossible to miss.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSimple Calibration:\u003c\/strong\u003e Easily adjustable for loose stones of various sizes with minimal setup.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncludes Testing Platform:\u003c\/strong\u003e A dedicated platform for loose stones is included, keeping gems secure and steady during testing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight \u0026amp; Portable:\u003c\/strong\u003e Slim pen-style body fits comfortably in hand; comes with a convenient carrying case for on-the-go use.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDetailed User Manual:\u003c\/strong\u003e Step-by-step instructions included so you can get started right away.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\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 (not included)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eItem Dimensions:\u003c\/strong\u003e 14 × 4 × 2 cm (5.5 × 1.6 × 0.8 in)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePackage Includes\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Diamond Selector Tester Pen\u003c\/li\u003e\n  \u003cli\u003e1 × Testing Platform (for loose stones)\u003c\/li\u003e\n  \u003cli\u003e1 × Carrying Case\u003c\/li\u003e\n  \u003cli\u003e1 × User Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCare \u0026amp; Maintenance Tips\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eHandle the probe tip with care — it is highly sensitive. Always replace the protective sheath when not in use.\u003c\/li\u003e\n  \u003cli\u003eIf the indicator light appears dim, the battery is low — replace promptly for accurate readings.\u003c\/li\u003e\n  \u003cli\u003eRemove the battery if storing for an extended period.\u003c\/li\u003e\n  \u003cli\u003eFor best accuracy, calibrate the device approximately once per year.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003eMade in Mainland China.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003ch2\u003eExplore More from Our Store\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/are-you-pooping-funny-cat-bathroom-canvas-wall-art-print\"\u003e\"Are You Pooping?\" Funny Cat Bathroom Canvas Wall Art Print\u003c\/a\u003e\u003c\/li\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\u003c\/ul\u003e\n\n\u003ch2\u003eTrusted Gemological Resources\u003c\/h2\u003e\n\u003cp\u003eFor more information on gem identification and quality standards, visit the NIST Measurement \u0026amp; Calibration Resource — a reliable reference for instrument calibration and measurement standards.\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: This diamond tester pen uses thermal conductivity technology. Real diamonds conduct heat differently than simulants such as cubic zirconia or moissanite. When the probe tip is pressed gently against a stone, the device measures heat transfer and indicates the result via a red LED light and an audio beep if a genuine diamond is detected.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Does the diamond tester pen work on loose stones?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The kit includes a dedicated testing platform specifically designed for loose stones, holding them securely in place so you can get a clean, accurate reading without the stone slipping.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What battery does the diamond tester use?\u003c\/h4\u003e\n\u003cp\u003eA: The device requires one standard 9V DC battery, which is \u003cstrong\u003enot included\u003c\/strong\u003e in the package. Standard 9V batteries are widely available at most electronics or hardware stores.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this diamond tester suitable for professional use?\u003c\/h4\u003e\n\u003cp\u003eA: Absolutely. This tester is designed for both professional jewelers and hobbyists. Its high-accuracy readings, simple calibration, and portable form factor make it a practical tool for gem identification in a shop, at a market, or at home.\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\": \"This diamond tester pen uses thermal conductivity technology. Real diamonds conduct heat differently than simulants such as cubic zirconia or moissanite. 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