Presidium Gem Tester II - Assisted Thermal Calibration (For #PTG111425 and after)

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

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

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Presidium Gem Tester II - Assisted Thermal Calibration (For #PTG111425 and after)

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

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

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