Explains in non-technical terms how to use the refractometer to identify diamonds and colored gems, and how to separate natural gems from imitations, treated gemstones, synthetics, and look-alikes.
With this highly accessible Guide booklet, anyone can begin to master gem Identification Using the refractometer..
The approach is direct and practical, and its style is easy to understand.
Explains in non-technical terms how to use the refractometer to identify diamonds and colored gems, and how to separate natural gems from imitations, treated gemstones, synthetics, and look-alikes