The RHG-181 Gemstone Refractometer is a portable optical instrument designed to measure refractive indices from 1.30 to 1.81, enabling fast identification of gemstone types, differentiation between natural, synthetic, and treated stones, and analysis of optical properties such as birefringence and crystal orientation—making it a practical tool for jewelers, gem traders, and inspection agencies.
Specifications
Measurement Range
Resolution
Dimensions
Weight
1.30-1.81
0.01
30*70*130mm
0.4kg
