Sachi Gem Refractometer is a low-cost lightweight measuring instrument used by jewellers and traders of gemstones to measure polished stones over a refractive index range of 1.30 to 1.81 RI. The instrument can also be used to identify whether a particular stone is Isotropic or Anmore...
The Gem Refractometer is a compact refractometer with built-in LED illumination for the determination of the refractive index, quality control and categorization of gemstones. Available in 2 types Type A:-Flashlight outside Type B:-Flashlight inside more...
The Refractometer has readings 1.31 to 1.81, with pullout eyepiece, give clear focus and reading polarizing, filter monochromatic filter and light source, supplied with 1.80RI liquid more...