--- 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: "69.41 DT" currency: TND in_stock: false reviews_count: 13 url: https://www.desertcart.tn/products/130705246-diamond-testing-kits-gem-pen-gemstone-jewelry-tester-tool-portable store_origin: TN region: Tunisia --- # 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:** 69.41 DT **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?** 69.41 DT with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/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 Diamond Testing Kits Gem Pen Gemstone Jewelry Tester Tool,Portable Electronic Diamond Tester Pen Jewelry Selector LED for diamond, sapphire, ruby, crystal, agate, jade, gems multi gemstone precious stones hardness test toolFeatures:Easy operation.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.Matched with a testing plat form for loose stones.Light weight, matched with a convenient carrying case.Detailed user manual is included in the package.Specifications:Color: BlackPower supply: 1 * DC 9V Battery (not include)Item size: 16 * 4 * 2.2cm (6.6 * 1.6 * 0.8in)Maintenance and repair:1, the instrument is very sensitive to the probe, must be particularly careful to protect, do not use should be set on the sheath.2, the preparation of the indicator light is very dark, shows the battery will run out, should be timely replacement battery.3, the instrument is not used for a long time, please take out the battery.4, in order to detect accurately, the proposed correction once a year.Warm tips:The 1 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.2 instrument for precision electronic instruments, the use of the environment for 5-35 degrees Celsius, the relative humidity of the air at 80%.3 gems must be clean, dry and at room temperature.4 when doing test, transferred to the first or second grid.Package including:1 * Diamond Test Tool1 * Testing Plat form1 * Carrying Case1 * User Manual Review: How are you - Varry good 👍 Review: Good product. Buy batteries separately! - As described and easy to set up though batteries for use are not included. ## 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 | | Best Sellers Rank | 221,380 in DIY & Tools ( See Top 100 in DIY & Tools ) 533 in Multi Testers | | Brand | HOMYY | | Colour | black | | Customer Reviews | 4.1 4.1 out of 5 stars (232) | | Item Dimensions | 32 x 10 x 8 centimetres | | Item Weight | 0.01 Kilograms | | Manufacturer | HOMYY | | Measurement Type | Thermal Conductivity | | Minimum Operating Voltage | 9 Volts | | Power Source | Battery Powered | | Specification Met | CE, IEC 1010, UL | | Style Name | Tragbar | | UPC | 697180508589 | | Upper Temperature Rating | 35 Degrees Celsius | ## 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/71hfPwY8STL.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/61OvE4abXkL.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/51NWdLmkh3L.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/61DfPsrU77L.jpg) ## Available Options This product comes in different **Color** options. ## 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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ How are you *by M***L on 8 October 2025* Varry good 👍 ### ⭐⭐⭐⭐⭐ Good product. Buy batteries separately! *by A***M on 11 May 2025* As described and easy to set up though batteries for use are not included. ### ⭐⭐⭐⭐ Good price *by R***. on 12 November 2024* Not super robust but good tool comes with case. ## 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.tn/products/130705246-diamond-testing-kits-gem-pen-gemstone-jewelry-tester-tool-portable](https://www.desertcart.tn/products/130705246-diamond-testing-kits-gem-pen-gemstone-jewelry-tester-tool-portable) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-05-31*