Secrets of the Gem Trade: The Connoisseur’s Guide to Precious Gemstones the second edition was published in 2016, extensively revised and rewritten. The 2nd edition has an additional 127 pages, 11 new chapters, 5 new introductory essays and 161 additional photographs.

DCGIA thanks Richard for sharing his knowledge and experiences with the membership.

Visit https://www.richardwbooks.com/ to see all of Richard’s books.