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Since it was published in 1962, "Gems" has become universally recognized as the most comprehensive and authoritative treatise on gem materials in the English language. Now in its …
Gem Identification Made Easy explains in non-technical terms how to use pocket, portable and laboratory instruments to identify diamonds and coloured gems and to separate them from …
Sought after, fought over, hoarded, hidden and stolen; diamonds remain one of mankind's greatest obsessions. Diamond represents the most concentrated form of wealth on the planet …
This is the seventh edition of a book which has been for years the 'bible' of professional and amateur gemmologists, as well as retail jewellers. Originally written by Robert …