Gemstone refractometers

A compact professional refractometer for the determination of the refractive index of gemstones.

Gem refractometer with LED illumination, without polarizing filter.

A compact professional refractometer for the determination of the refractive index of gemstones.
Gem refractometer with polarizing filter, without LED illumination.

Standard gem refractometer with LED illumination, without polarizing filter.

Standard gem refractometer with polarizing filter, without illumination.