Colors Gemstone Tester PRESIDIUM Gem indicator PGI

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

Presidium Gem Tester PGT II Colored Gemstone Testers Estimator Display Gemological Testing Identification Instrument Tools

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

PRESIDIUM GEM INDICATOR PGI GEM TESTER USB

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

Presidium Gem Tester PGT II Colored Gemstone Testers Estimator Display Gemological Testing Identification Instrument Tools

Micrometer from 0 to 10 MM watch

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 Gem Indicator (PGI)

Colored Gemstone Indicator

Presidium Gem Indicator (PGI) Performing a Test and Reading Results

Duo Tester II (PDT) - combined tester - boley GmbH

Micrometer from 0 to 10 MM watch