Presidium - Gem Tester - China Presidium Diamond Tester

Retractable thermoelectric probe tip that ensures constant pressure between probe and gemstone Industrys thinnest probe tip (0.6mm) for testing

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Portable Gem Testing Instruments Diamond / Moissanites Presidium Gem Tester

SAM by Presidium SAM by Presidium from Kassoy

Presidium Gem Tester II Colored Stones and Diamond Moissanite Tester

Presidium Tester - Differentiates Moissanite, Diamonds, Ruby, Sapphire, & More! - Harlembling Review

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Presidium® Gem Tester II Colored Stones Diamond Testing Machine – SEP Tools

Presidium Adamas Diamond and Moissanite Tester - YQ-2300

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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