Refractometer Discounts apply or a really cheap version

or a really cheap version made of aluminium shapes

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

The Apex tests for the following:

fine repair jobs

This is the one stone that looks like diamond

Refractometer Discounts apply or a really cheap versionSummary 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