--- product_id: 643724813 title: "Xinler Accuracy Jewelry-Diamond Tester Pen Professional Jewelry Diamond Tester Tool （No Batteries Included）" brand: "xinler" price: "621460₫" currency: VND in_stock: true reviews_count: 8 category: "Xinler" url: https://www.desertcart.vn/products/643724813-xinler-accuracy-jewelry-diamond-tester-pen-professional-jewelry-diamond-tester store_origin: VN region: Vietnam --- # 9+ lights & beep = real diamond Compact 16x4x2.2 cm, 100g lightweight 9V battery powered (not included) Xinler Accuracy Jewelry-Diamond Tester Pen Professional Jewelry Diamond Tester Tool （No Batteries Included） **Brand:** xinler **Price:** 621460₫ **Availability:** ✅ In Stock ## Summary > 💎 Spot the real sparkle before anyone else does! ## Quick Answers - **What is this?** Xinler Accuracy Jewelry-Diamond Tester Pen Professional Jewelry Diamond Tester Tool （No Batteries Included） by xinler - **How much does it cost?** 621460₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/643724813-xinler-accuracy-jewelry-diamond-tester-pen-professional-jewelry-diamond-tester) ## Best For - xinler enthusiasts ## Why This Product - Trusted xinler brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted by Experts:** Top 100 Jewelry Diamond Tester with 4.1-star rating—join savvy pros who never get fooled by fakes. - • **Ergonomic & Portable:** Slim, lightweight design fits perfectly in your toolkit or pocket for on-the-go authenticity checks. - • **Multi-Gemstone Precision:** Accurately tests diamonds, sapphires, rubies, jade, agate & more with distinct light & beep signals. - • **User-Calibrated Accuracy:** Easily calibrate probe on glass for flawless readings on various gemstones every time. - • **Professional-Grade Testing:** Requires precise 90° probe angle & finger contact for diamond tests, ensuring expert-level reliability. ## Overview The Xinler Accuracy Jewelry Diamond Tester Pen is a professional-grade, multi-gemstone tester that detects authenticity of diamonds, sapphires, rubies, jade, agate, and crystals using a precise light and beep system. Powered by a 9V battery (not included), its compact and lightweight design ensures portability. With user calibration and strict testing protocols, it delivers reliable results trusted by jewelry professionals and enthusiasts alike. ## Description If the number of lights equal or exceed 9, and it beeps, it means the diamond is true. If the number of lights is 9 and it beeps, it means the sapphire is true. If the number of lights is 6.5-7, it means the agate is true. If the number of lights 7-8 , it means the crystal is true. If the number of lights is 6-7, it means the jade is true. ★ Before Test: 1. Put the battery into the tester. 2. Take off the probe cap. 3. Turn on the switch. 4. Make sure just 1 light light up on the scale. 5. Make sure the " ready lamp" light on. 6. (If you test diamond, you then need to turn on the number of lights corresponding to the indoor temperature and diamond weight. ) 7. (If you test other gems, you'd better calibrate the probe before testing, Method: by placing the probe vertically on a piece of glass, then adjusting the light to 5, and then placing the probe on the gemstone to test.) 8. Test is ready. ★ NOTICE: * No matter what gemstone you are testing, the probe needle and the tested object must be at a 90° angle. * When testing diamond, your right index finger must keep touching the metal panel on the back of the tester, while you do not touch the panel if you test other gemstones. * Do Not test any metal. * Do Not wear glove. Product size: 16 * 4 * 2.2 cm. weight: 100g. Power needed: 1x 9V battery (not included). Package contains: - 1x diamond tester - 1x English introduction - 1x black storage case If you have any problem about the testing, please contact us, we would love to help. Review: ......... WORKS! - Had my LAST one for "8" years... But unfortunately, someone borrowed it, and didn't return it.. So just purchased this one with my fingers crossed, hoping this one will work.. Too many bad reviews, but this new one works too! I also use it to test my "moissanite".... Genuine moissanite "WILL" indeed test as a diamond. IF it's authentic moissanite. Had WAY too many moissanite rings purchased on desertcart, that were NOT moissanite as the sellers claimed!!! (angry emoji face). FYI; .. Only the brand "MOOSEA" moissanite proved to be genuine moissanite. Available here on desertcart. G-R-E-A-T prices too!!! Review: Works well - Love it ## Features - This gemstone testing equipment is not only a diamond tester, but also a multi gemstone tester. It can detect if a gemstone is real or fake, including: diamond, sapphire, ruby, crystal, agate, jadeite, and other precious stone of various sizes. - * If the number of lights equals or exceeds 9, and it beeps, it means the diamond is true. * If the lights is about 9 and it beeps, it means the sapphire is true. * If the number is 6.5-7, it means the agate is true. * If the number is 7-8 , it means the crystal is true. * If the number is 6-7, it means the jade is true. - Before Test: 1. Put the battery in the tester. 2. Take off the probe cap. 3. Turn on the switch. 4. Make sure only one light light up on the scale. 5. Make sure the " ready lamp" light on. 6. (If test diamond, you then need to turn on the lights number corresponding to the indoor temperature and diamond weight.). 7. (If test other gems, you'd better calibrate the probe, method: by placing the probe vertically on a glass, then adjusting the light to 5, then test the gems.) - ★ NOTICE: * No matter what gemstone you are testing, the probe needle and the tested object must be at a 90° angle. * When testing diamond, your right index finger must keep touching the metal panel on the back of the tester, while you do not touch the panel if you test other gemstones. * Do Not test any metal. * Do Not wear glove. - Product size: 16 * 4 * 2.2 cm. weight: 100g. Power needed: 1x 9V battery (not included). If you have any problem about the testing, please contact us, we would love to help. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0D8W26TFF | | Best Sellers Rank | #236,038 in Arts, Crafts & Sewing ( See Top 100 in Arts, Crafts & Sewing ) #92 in Jewelry Diamond Testers | | Customer Reviews | 4.1 4.1 out of 5 stars (89) | | Date First Available | July 5, 2024 | | Item Weight | 3.2 ounces | | Item model number | XL5LK2-05TE | | Manufacturer | xinler | | Product Dimensions | 7 x 1.8 x 1.4 inches | ## Images ![Xinler Accuracy Jewelry-Diamond Tester Pen Professional Jewelry Diamond Tester Tool （No Batteries Included） - Image 1](https://m.media-amazon.com/images/I/71HbOyzCtfL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ ......... WORKS! *by B***Y on August 12, 2024* Had my LAST one for "8" years... But unfortunately, someone borrowed it, and didn't return it.. So just purchased this one with my fingers crossed, hoping this one will work.. Too many bad reviews, but this new one works too! I also use it to test my "moissanite".... Genuine moissanite "WILL" indeed test as a diamond. IF it's authentic moissanite. Had WAY too many moissanite rings purchased on Amazon, that were NOT moissanite as the sellers claimed!!! (angry emoji face). FYI; .. Only the brand "MOOSEA" moissanite proved to be genuine moissanite. Available here on Amazon. G-R-E-A-T prices too!!! ### ⭐⭐⭐⭐⭐ Works well *by J***Y on September 2, 2025* Love it ### ⭐⭐⭐⭐⭐ Awesome *by J***K on December 2, 2025* Works great ## Frequently Bought Together - Xinler Accuracy Jewelry-Diamond Tester Pen Professional Jewelry Diamond Tester Tool - GTE Precious Metal Jewelry Testing Kit Gold Silver Platinum Test Acids Wooden Box 30X Eye Loupe 10K 14K 18K 24K Needle File Cloth Acid --- ## 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.vn/products/643724813-xinler-accuracy-jewelry-diamond-tester-pen-professional-jewelry-diamond-tester](https://www.desertcart.vn/products/643724813-xinler-accuracy-jewelry-diamond-tester-pen-professional-jewelry-diamond-tester) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-16*