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 Duo Tester PDT Colored Gemstone Tester

How to Calibrate Presidium Gem Tester ii (PGT II)

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

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

Presidium Diamond Mate-A Tester

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

Presidium Adamas Diamond and Moissanite Tester Authenticating Diamonds : Arts, Crafts & Sewing

Presidium Refractive Index Meter II

Presidium DUO Tester - Jewels & Tools

Gem testers