Operation of this unit is simple. Turn unit on, wait five to seven seconds for the "READY" light, select large or small stone, and touch probe tip to the stone. A light will turn on along with an audio indication if the stone is a diamond. No external power cords or clips necessary, this diamond tester uses a 9V battery. Full two year warranty included.

* weight under 1Lb

This unit comes with advanced testing features and options. Our twelve light display makes it possible to identify CZ, diamonds, and other stones such as sapphires. Warm up time is less than seven seconds. Manual controls allow for accurate tests outside normal environmental conditions. The Prestige Series II comes with a full two year warranty. Operates on a 9V battery.