Tester di gioielli Kit di diodo per tester d'oro e argento kit elettronici Diamon

Tester for jewelry– This diamond selector tester is operated by a 9v battery (battery not included).
Diamond scratch test– The volume of this jewelry testing tool is adjustable with a volume pully.
Diamond tester pen professional– Operated by a 9v battery (battery not included).
Jewelers diamond tester– Test results: Our jewelry tester is very convenient for you to carry when purchasing diamonds or jewelry. The diamond tester will indicate whether the diamond you purchased is real or fake. You can also compare the data of diamonds in case you buy products.
Accuracy diamond selector– Operated by a 9v battery (battery not included).