Experience the assurance of authenticity with the EASY to use genuine GTE Diamond Analyzer. Perfect for discerning the purity of Diamonds, Rubies, Stones, Moissanites, CZ (Cubic Zirconia), Sapphire, Rhinestones, lab-created diamonds, zircon, and other simulants! Key Features: LCD Display & LED Indicator: Clear display for easy reading, with LED indicators for quick results. Quick & Precise Testing: Designed for swift, accurate, and safe diamond testing, providing peace of mind. Portable Design: The GTE Portable electronic diamond tester is compact and convenient, ideal for travel or everyday use. Battery Powered: Powered by a single DC 9V battery (Included) for hassle-free operation. Leather Carrying Case: Includes a sleek leather carrying case for protection and portability. Diamond Weight Estimator and Gauge: Estimate the size of loose or mounted stones with precision using the included diamond weight estimator and gauge. Testing Gemstones & Diamonds: Wondering whether your gemstone is authentic? Say goodbye to uncertainty with our electronic diamond tester. While traditional methods may lack reliability, our device offers a fast and foolproof solution. Simply place the tester's needle-like tip on the stone in question. If it's a real diamond, the device will confirm it either through its display or with a sound signal. This method is grounded in the fact that different gemstones conduct heat at varying rates, with diamonds exhibiting unique heat conductivity. Compact and portable, this electronic diamond tester is your reliable companion for on-the-go authenticity verification. Whether you're traveling or simply want peace of mind at home, trust the GTE Diamond Analyzer to provide accurate results, swiftly and conveniently.