Presidium Gem Indicator (PGI)

  • $ 309.00

The All-New Presidium Gem Indicator is the only handheld digital tester in the industry specifically for colored gemstones, being able to test for up to 31 gemstones based on their thermal and color properties, including colorless diamonds.

The Presidium Gem Indicator indicates up to 31 different types of colored gems based on their thermal conductivity and even features a color input function that allows users to select from a range of 12 common colors, thereby achieving more accurate results.

With an easy-to-read clear digital LED screen, this smart thermal tester also comes with the Presidium patented refined changeable probe tip, which ensures minimal equipment downtime.

The Presidium Gem Indicator is an enhanced and more convenient handheld version of the revolutionary Presidium Gem Tester/Colored Stone Estimator. It distinguishes between diamonds and other colored gemstones using the principles of thermal conductivity.

  • Product comes with 1-year warranty.
  • Can be powered by 3 AA batteries or through its USB port connected to external power source.
  • Ships From The USA

Download User Handbook (PDF)

Download Thermal & Color Chart Reference (PDF)


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