Puritest Electronc Diamond Testing Machine with Jewelers 30x Magnifying Glass Loupe-- Gemology Instruments Enables you to verify a stone is genuine while appraising or buying! Very handy at estate sales, auctions, etc! Brand New P7 Diamond Analyzer professional jewelers test machine, with leather case PuriTEST 30-x magnifying instrument, with case Give yourself piece of mind when investing in expensive jewelry Unique gift idea for jewelers, gemology students, diamond & gemstone collectors, or anyone interested in diamonds & gems