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.

PRESIDIUM GEM Tester II Colored Stones Diamond New Model

Gemstone Identifier Presidium Refractive Index Meter II

Used Presidium GIA Gem Diamond Jewel Tester With Manual~Working Condition

Colored Gemstone Indicator

Gem-eye I – SMARTPRO

Presidium Gem Tester, PDF, Gemstone

Presidium Gem Indicator (PGI) Gem Tester, 54-1144

Benchmark, Efficient presidium gemstone tester for Jewellers

Gem Tester II: Quick Diamond/Moissanite Identification & Colored Gemstone Separation

Presidium® Gem Tester II – ZAK JEWELRY TOOLS

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 Tester II Colored Stones Diamond Testing Machine – SEP Tools