Gem Identification Made Easy: A Hands-On Guide to More Confident Buying & Selling

The third edition of this accessible and knowledgeable guide to gem identification features updated information on new techniques and gems, including the high-pressure/high-temperature techniques used to treat some types of diamonds, methods for detecting diffusion techniques used to color sapphires, and new instruments for identification. Basic identification techniques are stressed, with instruction in setting up a lab, and discussion of instruments. More advanced techniques are then discussed. A chapter is included on antique and estate jewelry. Annotation ©2003 Book News, Inc., Portland, OR