Moissan Tester Professional Diamond Selector,High Precision Gemstone Tester,Portable Electronic Diamond Tester Tool,for Diamond, Sapphire, Ruby, Crystal, Agate, Etc

Features:This gemstone testing equipment is not only a diamond tester, but also a multi gemstone tester.It can detect if a gemstone is real or fake, including: diamond, sapphire, ruby, crystal, agate, jadeite, and other precious stone of various sizes.Non-destructive testing, do not hurt your item. It will automatically alarm if the battery is too low.LED light and audio indicate testing result...