Refractometers and Accessories

The refractometer measures the refractive index (RI) of a gem material. Safe and suitable for most polished gemstones, it is an invaluable gemmological tool –no gemmologist should be without one! With it, you can measure the minimum and maximum RI values, observe optic character and calculate any birefringence. We sell RI fluids which will take readings up to 1.81 and our refractometer comes with a built-in monochromatic filter (sodium yellow) for taking clear readings.

6 Items

per page
Set Descending Direction
  1. Gem-A 1.78-1.79 Refractometer Fluid
    £42.00
    Available for online purchase soon. Call or email us to order your products now
  2. Gem-A 1.81 Refractometer Fluid
    £82.80
    Available for online purchase soon. Call or email us to order your products now
  3. Gem-A LED Monochromatic Rheostat Light
    £78.00
    Available for online purchase soon. Call or email us to order your products now
  4. Gem-A Portable LED Monochromatic Light
    £54.00
    Available for online purchase soon. Call or email us to order your products now
  5. Gem-A Portable LED Monochromatic Rheostat Light
    £66.00
    Available for online purchase soon. Call or email us to order your products now
  6. Gem-A Refractometer
    £480.00
    Available for online purchase soon. Call or email us to order your products now

6 Items

per page
Set Descending Direction