Ruby & Sapphire A Gemologist’s Guide
Book ReviewBy Richard W. Hughes
with Wimon Manorotkul & E. Billie Hughes
RWH Publishing/Lotus Publishing
1st edition, 1st printing. Printed in Thailand.
ISBN 978-0-9645097-1-9
707 pages
Ruby & Sapphire A Gemologist’s Guide is the much-awaited work of famed gemologist…
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