The Presidium Gem Tester II is the industries most trusted gem

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

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

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Presidium Gem Tester II (PGT II) - Assisted Thermal Calibration

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

Presidium® Gem Tester II – ZAK JEWELRY TOOLS

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NOTE: The calibration may be affected during shipping. If you have issues, reach out to the seller. INDUSTRIES MOST TRUSTED gemstone tester redesigned

Presidium Instruments Gem Tester II (PGT II) Now with Assisted Thermal Calibration (ATC) for Identifying Diamonds/Moissanites and Common Colored

Gemstone Tester/Color Estimator Presidium

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Presidium Gem Tester II PGT II Diamonds/Moissanites and Colored Gemsto – Best Jewelry Supply