* Completely portable uses one nine volt battery (included) no awkward cord or adapter needed.
* Three minute shut off alert to save battery.
* Simple on off switch no tricky adjustments.
* Gray shock resistant housing with easy to read features.
* Comes with complete instructions.
* Protect yourself with the DiamondNite and get the right call every time.
Breakthrough technology now allows you to test for diamonds, CZ or Moissanite in a simple one touch process. The DiamondNite tests for diamond, versus cubic zirconia or synthetic Moissanite, so it is a true dual tester. We promise you'll be amazed by the accuracy and simplicity of this tester. One touch to the stone no beep means it is a CZ or other fake. First continuous beep means diamond (green light). If it is followed by a higher continuous beep, then it's a Moissanite (red light).