Presidium Gem Indicator (PGI), Gem Tester

The Presidium Gem Indicator is the Handheld Digital Diamond Gemstone Tester. This Colored Stone Estimator tests up to 31 different types of colored gemstones.

Colored stones Tester

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PRESIDIUM Gem Indicator PGI Gem Tester - Norway

Moissan/diamond Tester - Norway

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

Discover the Groundbreaking Synthetic Ruby Identifier by Presidium

Presidium Gem Tester

Presidium - Norway