The Presidium Gem Tester II is the industries most reliable colored ge

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Presidium Gem Tester II (PGT II) - Performing a test and Reading Results

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NEW PRESIDIUM Gem Tester II Colored Stone tester and Diamond Tester Moissanite 798804941239

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Presidium Instruments Gem Tester II (PGT II) with Assisted Thermal Calibration (ATC) for Identifying Diamonds/Moissanites and Common Colored Gemstones : Presidium: Arts, Crafts & Sewing

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Gem Tester II: Quick Diamond/Moissanite Identification & Colored Gemstone Separation

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Gem Tester II: Quick Diamond/Moissanite Identification & Colored Gemstone Separation