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This is a portable jewelry tool kit combo, suitable for handling any exposed or inlaid diamonds and gems, as well as other jewelry and precious metal

Diamond Tester Pen + 60X Led Magnifying + Ring Size Adjuster, Professional Diamond Detector High Accuracy Jewelry Diamond Tester Tool Kit for Novice

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Diamond Selector II Professional Diamond Tester J-ade Selector Test Pen B3X3

Professional Diamond Selector II will show real diamonds or fakes,Use the big/small switch to test diamonds,Makes an audible sound to easily distinguish readings. Easy to use:Real diamonds make sounds and lights = 9. Fake crystal, such as cubic zirconia (CZ), crystal, glass will not emit sound and light 9.

Best Precision Jewelry Diamond Test Pen Environmentally Friendly 9V Battery, High Precision Jewelry Diamond Tester, Suitable for Novice and Expert, T