List of Presidium Colored Gemstone Testers. Find out More!

Choose From A Wide Array of Presidium Colored Gemstone Handheld & Desktop Digital Testers, With Instant Results.

Presidium Instruments Gem Indicator (PGI) Handheld Tester for Identifying Diamonds and Common Colored Gemstones : Arts, Crafts & Sewing

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

PRESIDIUM Duo Tester PDT Colored Gemstone Tester with SimulantSet

List of Presidium Diamond & Moissanite Testers. Find out More!

Gem testers

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

Presidium GEM Indicator PGI Colored Gemstone Diamond Tester NEW

Presidium Electronic Refractive Index Meter II: Science Lab Refractometers: : Industrial & Scientific

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

Presidium Duo Tester PDT Diamond Gemstone Tester : Arts, Crafts & Sewing