Product Description
The RHG-181 Gemstone Refractometer is a practical optical instrument for measuring the refractive index of gemstones and solid materials within the range of 1.30 to 1.81. Designed for fast and accurate gemstone identification, it enables users to distinguish between natural, synthetic, and treated stones, while also analyzing optical characteristics such as birefringence, crystal type, and optical sign.
With its compact size and straightforward operation, the RHG-181 is widely used by jewelers, gem traders, appraisal professionals, and quality inspection agencies for both field and laboratory applications.
