Dupeakya Professional Diamond Selector II, Gem Tester Pen Portable Electronic Diamond Tester Tool for Jewelry Jade Ruby Stone (Diamond Tester 2)
- ...bject must be at a 90° angle. * When testing diamond, your right index finger must keep touching the metal panel on the back of the tester, while you do not touch the panel if you test other gemstones. * Do Not test any metal. * Don't wear gloves..
- [PACKAGE CONTENTS ]: 1 x diamond tester, 1 x leather case, 1 x test platform, 1 x user manual. The power needed: 1x 9V battery (not included). If you have any questions about use, please feel free to contact us..