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SmartPro-Primo Gem Gauge, Item 56.930

Precise Diamond and Gem-Stone Gauge measures loose and mounted stones

  • Measures from 0.01 to 28.00 mm
  • Accuracy 0.01 mm
  • Tolerance 0.01 mm
  • Digital mm/carat display
  • Hold-value function
  • Can measure gemstone dimensions on flat surfaces
  • Measures inner and outer dimensions
  • Includes attachment for mounted jewelry
  • Powered by micro USB or rechargeable battery

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