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Electronic Gem Testers

Electronic Gem Testers help to distinguish between similarly looking colored stones, colored stones and simulants, or between diamonds and diamond simulants. Electronic Gem Testers are unique products and the only ones we know of are produced by Presidium Instruments.


Presidium Duotester Electronic Gem Tester with Diamond Simulant Kit
Presidium Duotester Electronic Gem Tester with Diamond Simulant Kit
Reg. Price: $519.00
 Our Price: $459.95 
Presidium Duotester Electronic Gem and Diamond Tester
Presidium Duotester Electronic Gem and Diamond Tester
Reg. Price: $389.00
 Our Price: $369.95 
Presidium Gem Tester, Electronic Diamond And Colored Gemstone Tester
Presidium Gem Tester, Electronic Diamond And Colored Gemstone Tester
Reg. Price: $229.99
 Our Price: $189.95 
Presidium Reflectivity Meter PRM
Presidium Reflectivity Meter PRM
Reg. Price: $185.00
 Our Price: $169.95 
Replacement Probe for Presidium Gem or Duo Tester
Replacement Probe for Presidium Gem or Duo Tester
Price: $49.95