Books

Jewelry & Gems—The Buying Guide  (7th Edition) Jewelry & Gems—The Buying Guide  (7th Edition)
2012
Gem Identification Made Easy (5th Edition) Gem Identification Made Easy (5th Edition)
2013
Gem Identification Made Easy (4th Edition) Gem Identification Made Easy (4th Edition)
2012
Chelsea and Synthetic Emerald Filters Made Easy Chelsea and Synthetic Emerald Filters Made Easy
2013
Engagement & Wedding Rings (3rd Edition) Engagement & Wedding Rings (3rd Edition)
2012
Colored Gemstones 3/E Colored Gemstones 3/E
2012