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Presidium Instruments

Presidium Gem Indicator PGI Colored Gemstone Testers Gemological Testing Instrument Tools

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 Gem Indicator PGI Colored Gemstone and Diamond Tester – Best Jewelry Supply

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The Presidium Gem Tester II is the industries most reliable colored ge

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

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

Presidium® Gem Tester II – ZAK JEWELRY TOOLS

Presidium Gem Indicator

Discover the Presidium Gem Indicator Handheld Digital Tester for 31 Gemstone Types

Presidium Gem Indicator (PGI) Gem Tester, 54-1144