by Cally Hall
|
Gemstones of the World: Newly Revised & Expanded Third Edition by Walter Schumann |
by Martin Prinz
|
Gem Identification Made Easy, Third Edition: A Hands-On Guide to More Confident Buying & Selling by Antoinette L . Matlins |
Gemstone Buying Guide, Second Edition: How to Evaluate, Identify, Select & Care for Colored Gems by Renee Newman |
























