Diamond Jewelry Counterfeit Detection Kit PuriTEST Genuine Diamond Tester Stone Testing + 30 x 21mm Magnifying Eye Loupe for Gold Silver Jewelry + Coins + Pen Spots Forgeries and Fake Bills PuriTEST Diamond Tester 30x21mm Jewelers Eye Loupe Bill Detector Marker Pen Great for spotting forgeries or fakes A new gemstone weight gauge is included.