Portable Electronic Diamond Tester Pen,Professional Moissan Diamonds Tester High Accuracy Jewelry Detector with LED Light for Diamond Jade Ruby Crystal Sapphire Agate gems Multi Gemstone Precious

• Multi Gemstone Testing Accuracy: This portable electronic diamond tester pen works as a reliable jewelry gemstone testing tool for diamonds, moissanite, jade, ruby, sapphire, agate, crystal, and other precious stones. Whether you are a jeweler, collector, or hobbyist, it provides accurate identification across various multi gemstone precious categories without needing multiple devices
• Professional Detection with LED & Audio :The moissan diamond tester pen features an easy-to-read LED scale and a clear audible beep, helping you distinguish real diamonds from simulants quickly. Different stones trigger different LED ranges, making results simple to interpret. For professional use or personal evaluation, this diamond tester professional ensures confident assessments before buying, selling, or appraising
• Ultra-Portable & Lightweight Design: Measuring only 16×4×2.2 cm and weighing about 100 g, this portable electronic diamond tester pen fits easily into a pocket or toolkit. Ideal for travel, markets, exhibitions, or customer visits, it keeps a practical gemstone testing device always on hand without bulky equipment
• Simple Operation & Safe Testing: Powered by one standard 9V battery (not included), the jewelry gemstone testing tool requires no complex setup. For best results, place the probe vertically at 90° on the stone. When testing diamonds, touch the metal panel with your index finger; avoid gloves or metal interference. The fine probe ensures non-invasive testing, protecting mounted jewelry like rings and necklaces from scratches
• Long-Lasting & Battery-Operated Design: Unlike built-in battery devices that age and fail, this diamond tester pen uses a replaceable 9V battery, offering extended lifespan and consistent performance. No special charger needed – just replace the battery anywhere, avoiding downtime during critical evaluations

Brand:poluu Color:Black Quantity:1 piece Set or Combination: Tester pen only ( battery not included) Material:ABS plastic housing + metal probe tip Function:Identifies and distinguishes diamonds, moissanite, jade, ruby, sapphire, crystal, agate, and other precious stones using thermal conductivity-based detection with LED scale and audible beep Purpose:For jewelers, pawnbrokers, collectors, hobbyists, and everyday users to perform quick, non-invasive authenticity checks on loose or mounted gemstones during buying, selling, traveling, or appraising