Book of Donmon Teith

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 ge

one person can accomplish big things.

This colorful book offers you a window into the world of Mahatma Gandhi, one of the most amazing people of the twentieth century. You will learn about Gandhi’

Newly updated and expanded, Diamonds gives you all the information you need to buy, collect, sell—or simply enjoy—diamonds with confidence and knowledge. Wh

Explains in non-technical terms how to use the loupe and dark-field loupe to identify diamonds and colored gems, and how to separate natural gems from imitation