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

Presidium GEM Indicator PGI Colored Gemstone Diamond Tester NEW

The Presidium Gem Indicator (PGI) is the only hand held tester in the industry specifically for colored gemstones. It indicates up to 31 different

Presidium PGI Gem Indicator

Presidium Gem Indicator (PGI) – Mehta tools

Presidium Gem Indicator - YQ-103

Presidium Instruments Gem Indicator (PGI) Handheld Tester for Identifying Diamonds and Common Colored Gemstones : Arts, Crafts & Sewing

Presidium Instruments Gem Indicator (PGI) Handheld Tester for Identifying Diamonds and Common Colored Gemstones : Arts, Crafts & Sewing

Presidium Gem Indicator (PGI) Performing a Test and Reading Results

Presidium Gem Indicator - YQ-103

Presidium Gem Indicator (PGI) Performing a Test and Reading Results

Presidium Gem Indicator PGI Colored Gemstone and Diamond Tester

Presidium Gem Indicator

Testing – Tagged Tester – Ikohe