The GemOro Ultratester 3 is the ultimate diamond and moissanite tester. Using advanced patented UV-F1 Identification Technology, it can accurately identify and separate diamond from CZ, moissanite, and white sapphire. The glowing probe tip and light bar indicator make the results easy to read. Plus, with a two year warranty on the probe tip, you can trust its reliability.

Glowing probe tip and light bar indicator:

Diamond = Green
Moissanite = Blue
Metal Warning = Red
Pink = Sapphire