--- product_id: 130705246 title: "Diamond Testing Kits Gem Pen Gemstone Jewelry Tester Tool,Portable Electronic Diamond Tester Pen Jewelry Selector LED(Black)" brand: "homyy" price: "FREE" currency: EUR in_stock: false url: https://www.desertcart.fr/products/130705246-diamond-testing-kits-gem-pen-gemstone-jewelry-tester-tool-portable store_origin: FR region: France --- # Compact & portable with carrying case LED + audio real-time alerts Precision thermal conductivity sensor Diamond Testing Kits Gem Pen Gemstone Jewelry Tester Tool,Portable Electronic Diamond Tester Pen Jewelry Selector LED(Black) **Brand:** homyy **Price:** FREE **Availability:** ❌ Out of Stock ## Summary > 💎 Test with confidence, flaunt with pride! ## Quick Answers - **What is this?** Diamond Testing Kits Gem Pen Gemstone Jewelry Tester Tool,Portable Electronic Diamond Tester Pen Jewelry Selector LED(Black) by homyy - **How much does it cost?** FREE with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/130705246-diamond-testing-kits-gem-pen-gemstone-jewelry-tester-tool-portable) ## Best For - homyy enthusiasts ## Why This Product - Trusted homyy brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Reliable & Certified:** CE, IEC 1010, and UL certifications guarantee trusted performance every time. - • **User-Friendly Design:** Simple operation with a detailed manual ensures anyone can test like a pro. - • **Multi-Stone Calibration:** Easily calibrate for various gemstone sizes for versatile testing accuracy. - • **Ultra-Light & Travel-Ready:** Weighing just 10g, it fits perfectly in your professional toolkit or travel bag. - • **Instant Diamond Verification:** LED and audio indicators confirm authenticity in seconds, eliminating guesswork. ## Overview The HOMYY Diamond Testing Kit is a portable, battery-powered electronic pen designed to accurately identify real diamonds using thermal conductivity technology. Featuring LED and audio alerts, it supports multi-stone calibration and comes with a carrying case and user manual, making it an essential tool for jewelers and gemstone enthusiasts seeking reliable, on-the-go authenticity verification. ## Description International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions. ## Features - LED light and audio result indication.The red light will be showed and the audio indicator will ring if the stone is real diamond. - Simple calibration for stones of various sizes.Accurate and reliable reading. - Light weight, matched with a convenient carrying case.Detailed user manual is included in the package. - The thermal conductivity meter is designed and manufactured according to the thermal conductivity of diamond. It is specially used for the identification of the true and false of diamond. - Warm tips:gems must be clean, dry and at room temperature.when doing test, transferred to the first or second grid. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07QL5FQPY | | Batteries Required? | No | | Batteries included? | No | | Best Sellers Rank | 252,004 in DIY & Tools ( See Top 100 in DIY & Tools ) 545 in Multi Testers | | Certification | CE, IEC 1010, UL | | Colour | Black | | Customer Reviews | 4.1 4.1 out of 5 stars (235) | | Date First Available | 12 April 2019 | | Guaranteed software updates until | unknown | | Item Weight | 9.07 g | | Manufacturer | HOMYY | | Manufacturer reference | 15550505351915 | | Part Number | 15550505351915 | | Power Source | Battery Powered | | Product Dimensions | 32 x 10 x 8 cm; 9.07 g | | Style | Tragbar | ## Product Details - **Brand:** HOMYY - **Colour:** black - **Item weight:** 0.01 Kilograms - **Power source:** Battery Powered - **Style:** Tragbar ## Images ![Diamond Testing Kits Gem Pen Gemstone Jewelry Tester Tool,Portable Electronic Diamond Tester Pen Jewelry Selector LED(Black) - Image 1](https://m.media-amazon.com/images/I/61ha2MbaJ8L.jpg) ![Diamond Testing Kits Gem Pen Gemstone Jewelry Tester Tool,Portable Electronic Diamond Tester Pen Jewelry Selector LED(Black) - Image 2](https://m.media-amazon.com/images/I/31lG5jNmM2L.jpg) ![Diamond Testing Kits Gem Pen Gemstone Jewelry Tester Tool,Portable Electronic Diamond Tester Pen Jewelry Selector LED(Black) - Image 3](https://m.media-amazon.com/images/I/41sy0xYE+PL.jpg) ![Diamond Testing Kits Gem Pen Gemstone Jewelry Tester Tool,Portable Electronic Diamond Tester Pen Jewelry Selector LED(Black) - Image 4](https://m.media-amazon.com/images/I/419yPtVd1eL.jpg) ![Diamond Testing Kits Gem Pen Gemstone Jewelry Tester Tool,Portable Electronic Diamond Tester Pen Jewelry Selector LED(Black) - Image 5](https://m.media-amazon.com/images/I/31eOFhhJKQL.jpg) ## Questions & Answers **Q: Does this test gold?** A: No, it tests diamonds well though. I went through all of my jewellery and it worked well. ## Frequently Bought Together - Diamond Selector II Gold Testing Kits Gem Pen Gemstone Jewelry Tester Tool,Portable Electronic Diamond Tester Pen Jewelry Selector LED(Black) - Neodymium Rare Earth Magnet for Testing Scrap 9ct 18ct 24ct Gold,Silver,Coins & Antiques half full sovereign - Ascher 200 gram Portable Digital Pocket Scale with Back-lit LCD Display 200x0.01 gram Black --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.fr/products/130705246-diamond-testing-kits-gem-pen-gemstone-jewelry-tester-tool-portable](https://www.desertcart.fr/products/130705246-diamond-testing-kits-gem-pen-gemstone-jewelry-tester-tool-portable) --- *Product available on Desertcart France* *Store origin: FR* *Last updated: 2026-10-11*