--- product_id: 590192583 title: "Diamond Tester, High Accuracy Diamond Tester Pen with LED Indicator Light and Sound Prompt, Portable Electronic Diamond Testers Professional for Novice and Expert, Diamond/Sapphire/Ruby/Crystal" brand: "dupelec" price: "S/.98" currency: PEN in_stock: true url: https://www.desertcart.pe/products/590192583-diamond-tester-high-accuracy-diamond-tester-pen-with-led-indicator store_origin: PE region: Peru --- # High accuracy Compact size Battery powered Diamond Tester, High Accuracy Diamond Tester Pen with LED Indicator Light and Sound Prompt, Portable Electronic Diamond Testers Professional for Novice and Expert, Diamond/Sapphire/Ruby/Crystal **Brand:** dupelec **Price:** S/.98 **Availability:** ✅ In Stock ## Summary > 💎 Unleash Your Inner Gemologist! ## Quick Answers - **What is this?** Diamond Tester, High Accuracy Diamond Tester Pen with LED Indicator Light and Sound Prompt, Portable Electronic Diamond Testers Professional for Novice and Expert, Diamond/Sapphire/Ruby/Crystal by dupelec - **How much does it cost?** S/.98 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/590192583-diamond-tester-high-accuracy-diamond-tester-pen-with-led-indicator) ## Best For - dupelec enthusiasts ## Why This Product - Trusted dupelec brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **⚡ Quick Results:** Fast testing without damaging your gemstones. - • **📦 Portable Design:** Lightweight and compact for on-the-go testing. - • **🛡️ User-Friendly:** Simple operation for both novices and experts. - • **🔍 Precision Testing:** Identify genuine diamonds with unmatched accuracy. - • **🔊 Sound & Light Alerts:** Instant feedback with LED and sound prompts. ## Overview The Diamond Tester by DUPELEC is a professional-grade electronic instrument designed for accurately identifying diamonds and other gemstones based on thermal conductivity. With a compact design, sound and LED alerts, and user-friendly operation, this tester is perfect for both novices and experts. It ensures quick, precise results without damaging your precious stones, making it an essential tool for anyone involved in buying or trading jewelry. ## Description Diamond Tester, High Accuracy Diamond Tester Pen with LED Indicator Light and Sound Prompt, Portable Electronic Diamond Testers Professional for Novice and Expert, Diamond/Sapphire/Ruby/Crystal ## Features - 【Diamond Tester Professional】Diamond tester is a precision electronic instrument designed and manufactured specifically for identifying the authenticity of diamonds based on their thermal conductivity. Genuine diamonds will make the tester emit sound and LED light>=9. Fake crystals such as cubic zirconia (CZ), glass, etc. will be silent and LED lights will be <9. - 【Easy Test】The operation of tester pen is very simple and does not require professional personnel to complete. Simply install the 9V battery (not included), open it, gently press the tip vertically onto the gemstone, and wait for the beep to know if the gemstone is real or fake. - 【If It's A Real Diamond】Diamond tester professional will light up 9 LED lights and emit audible sound. No response means that this stone is a fake crystal or a simulation similar to cubic zirconium (CZ). It can also be used for the detection of gemstones such as jade, crystal, agate, and jadeite. - 【Quick and Secure】Fast, precise, and safe, ensuring that diamonds will not be damaged during the testing process. Can provide accurate results every time. Note: Please ensure that the ambient temperature during use is 5 ℃ -35 ℃ (41 ℉ -95 ℉), the relative humidity of the air is less than 80%, and the gemstone being tested must be clean, dry, and at room temperature - 【Easy to Carry】The Diamond tester is powered by a standard 9V battery (not included), with a compact size of 160 * 40 * 22mm and a lightweight weight of 130g, making it easy to carry around. It is an essential device for purchasing or trading diamond jewelry. Package: 1 X Diamond Test Pen, 1 X Leather Case, 1 X Testing Platform. ## Technical Specifications | Specification | Value | |---------------|-------| | Manufacturer | DUPELEC | | Part number | 1036 | | Item Weight | 130 g | | Package Dimensions | 19.2 x 5.8 x 3.6 cm; 130 g | | Item model number | DUPELEC | | Style | Compact | | Power source type | Battery Powered | ## Product Details - **Brand:** DUPELEC - **Power source:** Battery Powered - **Style:** Compact - **Item weight:** 130 Grams - **Lower temperature rating:** 5 Degrees Celsius ## Images ![Diamond Tester, High Accuracy Diamond Tester Pen with LED Indicator Light and Sound Prompt, Portable Electronic Diamond Testers Professional for Novice and Expert, Diamond/Sapphire/Ruby/Crystal - Image 1](https://m.media-amazon.com/images/I/7119Q1ataPL.jpg) ## Frequently Bought Together - Diamond Tester, High Accuracy Diamond Tester Pen with LED Indicator Light and Sound Prompt, Portable Electronic Diamond Tester Professional for Novice and Expert, Diamond/Sapphire/Ruby/Crystal - Duracell Plus 9V Batteries (Pack of 2) - Alkaline - 100% Life Guaranteed - Reliability For Everyday Devices - 0% Plastic Packaging - 5 Year Storage - 6LR61 MN1604 --- ## 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.pe/products/590192583-diamond-tester-high-accuracy-diamond-tester-pen-with-led-indicator](https://www.desertcart.pe/products/590192583-diamond-tester-high-accuracy-diamond-tester-pen-with-led-indicator) --- *Product available on Desertcart Peru* *Store origin: PE* *Last updated: 2026-09-20*