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.

Gem-eye I – SMARTPRO

Gemstone Identifier Presidium Refractive Index Meter II

Presidium Gem Tester PGT II Colored Gemstone Testers, 43% OFF

Gemstone Identifier Presidium Refractive Index Meter II

Presidium PDT Duo Tester-Identify Diamonds & Colored Stones

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

GEMSTONE DUO TESTER

Presidium DUO Tester - Jewels & Tools

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

Presidium Gem Indicator - YQ-103

Diamond & Gem Tester Tool: Presidium Gem Tester

Presidium Gem Tester II (PGT II)

Presidium® PRIM II Refractive Index Meter

Colored Gemstone Indicator

INCLUDED ASSISTED THERMAL CALIBRATION | Now easily self calibrate your device to your testing environment INDUSTRIES MOST TRUSTED | Gemstone tester

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