Photo 1 of High Accuracy Diamond Tester Pen,Professional Jewelry Diamond Tester,Diamond Selector for Novice and Expert, Thermal Conductivity Meter-9V Battery Included(Diamond Tester)

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Photo 1 of High Accuracy Diamond Tester Pen,Professional Jewelry Diamond Tester,Diamond Selector for Novice and Expert, Thermal Conductivity Meter-9V Battery Included(Diamond Tester)Photo 2 of High Accuracy Diamond Tester Pen,Professional Jewelry Diamond Tester,Diamond Selector for Novice and Expert, Thermal Conductivity Meter-9V Battery Included(Diamond Tester)