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Diamond Gem Tester Pen - High Accuracy Diamond Tester Kit Portable Electronic Diamond Gem Tester with 60X Magnifying Glasses and Battery Jewelry Diamond Detector for Expert Novice

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Diamond Tester Pen High Accuracy Diamond Selector Detector Jewelry Testing Tool with Case for Novice Expert - AliExpress

Diamond Gem Tester Pen - High Accuracy Diamond Tester Kit Portable Electronic Diamond Gem Tester with 60X Magnifying Glasses and Battery Jewelry Diamond Detector for Expert Novice

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