Professional Diamond Tester Pen, High Accuracy Jewelry Diamond Tester, Electronic Diamond Gem Tester and Tester Pen 60X Magnifying Glasses Tool Kit for Novice Expert (Diamond Tester Pen). Diamond Tester Pen Professional, High Accuracy Jewelry Diamond Tester, Electronic Diamond Gem Tester and Tester Pen 60X Magnifying Glasses Tool Kit for Novice Expert 9V Battery Included.
eBay