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Title: STANDARD CATALOG OF GEM VALUES
Review: This book has a wealth of information presented in a concise manner. It contains cuts of gems , colours, sources ..etc, and does not limit itself to a particular gem. It even contains information about pearls, which I thought surprising. I only wish it was more updated, bcause I have had it for 2.5 years, and went to amazon to see if a third version was issued.
