Presidium Gem Tester II Color Diamond Tester

Presidium Duo Tester II Assisted Thermal Calibration

Presidium GEM Indicator PGI Colored Gemstone Diamond Tester

PRESIDIUM Singapore original imported gem tester / gem testing

Presidium Duo Tester II (PDT II) - Calibration

Gem Tester II: Quick Diamond/Moissanite Identification & Colored

Presidium Multi-Tester The Ultimate Diamond Testing Tool

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

Presidium GEM Indicator PGI Colored Gemstone Diamond Tester NEW

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

The Presidium DuoTester differs from the Presidium Gem Tester in that the Presidium DuoTester includes a digital reflectivity measurement function.

Presidium PDT Duo Tester-Identify Diamonds & Colored Stones