Presidium Gemmological Tools

Presidium Gem Tester II! Everything you need to know - Review

Presidium Gem Computer Gauge! Everything you need to know - Review

ARI Presidium - Branko Gems - Gemmological Research Industries Inc.

The All-New Presidium Gem Indicator is the only handheld digital tester in the industry specifically for colored gemstones, being able to test for up

Presidium Gem Indicator (PGI)

Presidium® (PGT II) Gem Tester - Presidium® Gem Tester II

PresidiumInstruments (@askPresidium) / X

Specialist Equipment for Expert Gemmologists - Assay Office

Presidium Instruments Gem Tester II (PGT II) Now with

Speed up your diamond and weight estimating with the latest product from PRESIDIUM. The easy-to-read millimeter and carats scale eliminate eye fatigue

Presidium Gemstone Dial Gauge

Presidium Gemmological Tools

Gem Equipment

A&A Jewelry Supply - Presidium® Gem Indicator (PGI)