Singapore PRESIDIUM Gem Tester II, testing 16 kinds of gems
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
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Presidium Instruments Gem Tester II (PGT II) with Assisted Thermal
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Guide on How to Calibrate Presidium Gem Tester
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Is it a Diamond? Ruby or Garnet? Sapphire or Tanzanite? Emerald or Jadeite? The PRESIDIUM GEM TESTER PROVIDES THE ANSWERS!!! The Presidium Gem Tester
Presidium Gem Tester/Colored Stone Estimator II
How to Perform a Test Using the Presidium Gem Indicator (PGI
Presidium Instruments
PRESIDIUM Singapore original imported gem tester / gem testing