COHEALI 1 Set 2 Pcs Detector Dimaond Tester Diamond Checking Machine Gem Tester Moissanite Measuring Tool Diamond Tester Professional Mohs' Scale of Hardness Engineering Plastics Lattice
$30.39
Description
Real diamond tester-- they can measure the thermal conductivity and hardness of gems..Diamond tester professional-- non- testing, do not harm the diamond..Gems detector-- accurate and reliable reading, simple but practical..Gem tester-- the operation is simple and the test is accurate..Gemstone tester-- the heat conduction board on the back of the product, please match with the heat conduction board when testing.
