--- product_id: 595753346 title: "Electronic diamond tester pen, Diamond Selector, Diamond Tester Selector, Stones hardness test tool, for diamond, sapphire, ruby, crystal, agate, for Novice and Accuracy Professional" brand: "kowvowz" price: "€ 33.58" currency: EUR in_stock: true url: https://www.desertcart.sk/products/595753346-electronic-diamond-tester-pen-diamond-selector-diamond-tester-selector-stones store_origin: SK region: Slovakia --- # High Precision Temperature Range Audio Alert Electronic diamond tester pen, Diamond Selector, Diamond Tester Selector, Stones hardness test tool, for diamond, sapphire, ruby, crystal, agate, for Novice and Accuracy Professional **Brand:** kowvowz **Price:** € 33.58 **Availability:** ✅ In Stock ## Summary > 💎 Discover the Truth Behind Your Gems! ## Quick Answers - **What is this?** Electronic diamond tester pen, Diamond Selector, Diamond Tester Selector, Stones hardness test tool, for diamond, sapphire, ruby, crystal, agate, for Novice and Accuracy Professional by kowvowz - **How much does it cost?** € 33.58 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/595753346-electronic-diamond-tester-pen-diamond-selector-diamond-tester-selector-stones) ## Best For - kowvowz enthusiasts ## Why This Product - Trusted kowvowz brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Multi-Gem Mastery:** Effortlessly identify diamonds, sapphires, rubies, and more with one sleek tool. - • **Real-Time Feedback:** Stay informed with instant audio and visual alerts for genuine gems. - • **Unmatched Accuracy:** Experience professional-grade testing with precise thermal conductivity measurements. - • **User-Friendly Design:** Engineered for simplicity, making gem testing accessible for novices and pros alike. - • **Optimal Testing Conditions:** Designed to perform flawlessly in a controlled environment of 5-35°C and 80% humidity. ## Overview The Electronic Diamond Tester Pen is a precision instrument designed for accurately testing the authenticity of various gemstones, including diamonds, sapphires, and rubies. With its user-friendly interface, real-time audio alerts, and reliable performance in specific environmental conditions, this tool is perfect for both novice gem enthusiasts and professional jewelers. ## Description Electronic diamond tester pen, Diamond Selector, Diamond Tester Selector, Stones hardness test tool, for diamond, sapphire, ruby, crystal, agate, for Novice and Accuracy Professional ## Features - 💎【Reliable Trust:】Electronic Diamond Tester Pen Professional design, good workmanship, accurate and reliable testing, LCD display and LED display. - 💎【High Precision】This Electronic Diamond Tester Pen is a day-to-day, professional and electronic tester. If the stone is real diamond, the red light will light up and the audio display beep will ring. - 💎【Major】The Electronic Diamond Tester Pen is a kind of electronic instrument that was specially developed and manufactured for the thermal conductivity of diamond. It is an electronic precision instrument. The operating environment is 5-35 degrees Celsius. The relative humidity is 80. The test stone must be clean, dry and at room temperature. - 💎【Operator Simplicity】This Electronic Diamond Tester Pen is not only a diamond tester, but also a multi-gem tester. It can tell if a gem is real or false, including: diamond, sapphire, ruby, crystal, agate, jadeite, and other gemstones of various sizes. - 💎【Application】Electronic Diamond Tester Pen No matter which gem you test, the probe needle and the object being tested must be at a 90 ° angle. * When testing diamond, your right index finger must touch the metal plate on the back of the tester while you are not touching the panel when testing other gemstones. * Dont test metal. * Do not wear gloves. ## Product Details - **Brand:** KOWVOWZ - **Power source:** Battery Powered - **Style:** portable - **Colour:** Black - **Item weight:** 119 Grams ## Images ![Electronic diamond tester pen, Diamond Selector, Diamond Tester Selector, Stones hardness test tool, for diamond, sapphire, ruby, crystal, agate, for Novice and Accuracy Professional - Image 1](https://m.media-amazon.com/images/I/71kNp9OgzhL.jpg) ## Frequently Bought Together - Electronic diamond tester pen, Diamond Selector, Diamond Tester Selector, Stones hardness test tool, for diamond, sapphire, ruby, crystal, agate, for Novice and Accuracy Professional - GTE Precious Metal Jewelry Testing Kit Gold Silver Platinum Test Acids Wooden Box 30X Eye Loupe 10K 14K 18K 24K Needle File Cloth Acid - 2 Pieces Jewelers Loupe 30X 60X 90X Illuminated Jewelers Eye Loupe Magnifier Jewelry Magnifying Glass Loop with UV Black Light and Bright LED Light for Jewelry Diamond Gem Coin Stamp Rock (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.sk/products/595753346-electronic-diamond-tester-pen-diamond-selector-diamond-tester-selector-stones](https://www.desertcart.sk/products/595753346-electronic-diamond-tester-pen-diamond-selector-diamond-tester-selector-stones) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-05-19*