Presidium Gem Tester II (pgt II)

Presidium Gem Tester II (PGT II) for Identifying Diamonds/Moissanites and Up To 16 Common Colored Gemstones

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Presidium Tester - Differentiates Moissanite, Diamonds, Ruby

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

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