Gem

What is

        The gemological refractometer, or simply gem refractometer, is an essential instrument for identifying and analyzing gemstones. It measures the refractive index (RI) of a gem, one of the most reliable properties for distinguishing different materials. Each gemstone bends light in a specific way, expressed as its RI value and related optical behaviors. With this device, users can determine whether a stone is singly or doubly refractive, uniaxial or biaxial, and can calculate its birefringence. By comparing these measurements with known reference data, users can accurately identify a gem and determine whether it is natural or synthetic. Reliable RI testing ensures correct valuation and builds trust in the gemstone trade.