PRESIDIUM DIAMONDMATE-C ELECTRONIC DIAMOND TESTER
Easy to use. The Presidium DiamondMate diamond tester utilizes proven thermal conductivity testing method to instantly verify the authenticity of diamonds. The test results are indicated by visual light and audible beeps. This is the DiamondMate-C model (same as DiamondMate-A, except the following): Operates on rechargeable (NICAD) batteries or direct AC current & Rechargeable batteries and AC adapter/Charger are included.     Features:    No waiting time between tests     Pocket size     Low batteries indicator    Metal detector - intermittent beep    Measured diamond - continuous beep    Low battery consumption     Carrying case    1 year factory warranty     Size : L-160mm (6 1/3") x W-21mm (13/16") x H-30mm (1 3/16") Weight : 45 gms ( 1 1/2 oz.)          Note: Additional moissanite tester required to eliminate synthetic moissanite.