Gemstone Tester/Color Estimator Presidium

Cas-Ker is your trusted and timely source for precision watchmakers and jewelers tools and supplies. Family owned and operated since 1927, Cas-Ker has the professional grade jeweler and horological products you need to do the work you love.

Cape Precious Metals - Presidium Gem Tester

PRESIDIUM Gem Indicator (PGI) Colored Gemstone Tester

Thermal Conductivity Tester SmartPro Gem-Eye 1 Gemstone Tester from Kassoy

Gemstone Identifier Presidium Refractive Index Meter II

Testing Identification Instrument Tools Presidium Gemstone Tester - Gem Tester Ii - Aliexpress

Presidium Instruments - The only handheld digital tester in the industry specifically for colored gemstones, and tests for 31 types of gemstones. The Presidium Gem Indicator, the only handheld tester in the

Presidium® PRIM II Refractive Index Meter

Diamond & Gem Tester Tool: Presidium Gem Tester

NOTE: The calibration may be affected during shipping. If you have issues, reach out to the seller. INDUSTRIES MOST TRUSTED gemstone tester redesigned

Presidium Instruments Gem Tester II (PGT II) Now with Assisted Thermal Calibration (ATC) for Identifying Diamonds/Moissanites and Common Colored