Gem Identification Made Easy (6th Edition) - Antonio C. Bonanno - Bog

The first and only book that explains in non-technical terms how to identify diamonds and colored gems, and how to separate natural gems from imitations, treated stones, synthetics, and look-alikes. The book's approach is direct and practical, and its style easy to understand. Using a simple, step-by-step system, the authors explain how to ... ...