…A pure joy to read. An absolute must!
– Peter Groenenboom
RUBY & SAPPHIRE by Richard W. Hughes is one of the finest books ever published on precious stones. It contains a wealth of information, including prices, quality analysis, sources, history, treatments and identification. This book is suitable for libraries, museums, auction houses, jewelers, gemologists, collectors, manufacturers, gem traders, miners, geologists, consumers – in short, anyone with an interest in precious stones.
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page is http://www.ruby-sapphire.com/r-s-book.htm