Gemmology / Jewellery Refractometers
The following models have a refraction index measuring range for identifying jewellery. In addition, a beautifully-made leather bag is included with delivery for this refractometer
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Kern ORA-G Jewellery Refractometer - GemologyStarting at £225.00 £270.00
ORA-G jewellery refractometer models are designed for jewellers and the jewellery industry and have a refraction index measuring range for identifying gemstones and other jewels. Learn More
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Gemmology / Jewellery Refractometers Help
What can a refractometer measure in a gemstone?
A gemstone refractometer measures the refractive index (RI) which can aid in the classifying and quality checking of gemstones, making it one of the most important values in gemology. Refractive index measures the degree to which light changes direction when a light passes through a gemstone, which is then correlated to fixed refractive index values. A higher RI means that a gem is more brilliant, with diamond having a RI of 2.417, whilst a lower number means they are less brilliant, with opal having a RI of 1.37 for example.
