The Presidium Gem Tester II is the industries most trusted gem tester.

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

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

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Presidium Instruments Gem Tester II (PGT II) with Assisted Thermal

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