2063471
9780972822398
gemstone quality grading, appreciation and connoisseurhip. Part I contains principles of quality. ParII gently guides the reader though the application of these principles to 35 of today's most important gemstonesWise, Richard W. is the author of 'Secrets of the Gem Trade', published 2003 under ISBN 9780972822398 and ISBN 0972822399.
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