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
