Product: Diamond Tester Portable LED Audio Jewelry Gem Gemstone Selector Precision Tool
Brand: zhuolong
Features:
 1. Green indicator will be showed if the stone is a real diamond. It will make continuous buzzing sound when user accidentally touches metal rather than stone.
 
 Specification:
 Material: Plastic
 Color: Shown As Pictures
 Size: Approx. 16 * 4 * 2.1cm / 6.3 * 1.57 * 0.83inch
 Battery: 9V Battery (Not Included)
 Weight: 160g
 Type: Jewelry Tool
 
 Package List:
 1 * Diamond Tester
 1 * Manual
 1 * Testing Platform

This diamond tester has a highly compact design and will help you to tell the difference between a genuine diamond and fake diamond
This tester comes with a PU case and small testing platform for holding loose stones
LED light and audio result indication
Simple calibration for stones of various sizes
Easy to use even for a new beginner

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