Refractometer Discounts apply this actual product weighs 0

this actual product weighs 0

can be switched to white (’cold’ light) orange (‘warm light)

Measures from 1 point to 4 carats

The Apex tests for the following:

or a really cheap version made of aluminium shapes

Refractometer Discounts apply this actual product weighs 0Summary For the gemmologist the refractometer is the most important gem tester after a loupe. It measures refractive index (to what extent light is bent as it passes through the gemstone). This product is intended for gemmologists (or those about to study gemmology) instructions are not included. Guarantee: 1 year. Detail Approx. 5 X 3 X 2 inches Built in monochromatic LED light Range: 1. 30 to 1. 81 Possible error in readings: + 0. 01 Test plate made