Tester for jewelry-- this diamond selector tester is operated 9v battery ( not included ). Diamond scratch test-- jewelry testing tool volume is
This diamond tester has a highly compact design, which can perform fast, accurate, and safe diamond testing, which is very suitable for carrying with
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Diamond Tester,High Accuracy Diamond Tester Pen and Diamond Torch Jewelry Diamond Tester Kit Professional Diamond Selector for Novice and Expert, Thermal Conductivity Meter (Battery Included) : Arts, Crafts & Sewing
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