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Precious and semi-precious stones importers

Checking the quality of a gem using the refractive index

Analogue refractometers | KERN ORA-G
When exporting gemstones, quality control is an important control process to verify the authenticity of the stone. Each gemstone has its typical refractive index due to its composition and crystalline structure. The refractive index quality control test is a quick and elegant method of inspecting and analyzing the stone
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Model Scales Scale Range ATC Price
ORA 1GG Refractive index 1,30 nD - 1,81 nD € 250.-
* DAkkS calibrations are also possible on site
All prices are net, valid until 25.10.2025 plus shipping cost