【Professional Diamonds Moissanite & Gemstone Tester】 This diamond tester is designed for both beginners and professionals. Simply power on, press the tip against the gemstone and wait for a beep to know if it's a real or fake diamond. A real diamond lights up to 9 and emits an audible sound. No reaction means it's a fake or simulant like cubic zirconia (CZ). Get quick, accurate results every time
【High Precision with Thermal Conductivity 】 Our Gemstone Tester uses thermal conductivity to accurately distinguish real diamonds, moissanite, and other fake gemstones. Real diamonds and moissanite have distinct thermal properties, and the contact probe will produce a high-frequency sound to confirm authenticity. This ensures reliable gemstone testing and avoids false positives when testing synthetic diamonds or other stimulants
【Adjustable for Carat Sizes - Easy to Test Small & Large Diamonds】 This moissanite tester support to adjust the settings according to the carat size displayed on the screen. For diamonds over 1.0 carats, turn on one green light; for 0.5 carats, two lights turn on; and smaller stones, three to four lights. This feature ensures accurate testing and results without needing to know the exact carat weight