The Complete Handbook for Weight Estimation
by: Charles I. Carmona, G.G.

The most complete publication ever addressing the challenges of estimating weights of mounted gemstones. It has formulas and tables for 24 common shapes and 48 uncommon shapes for all varieties of gemstones as well as a vast glossary of gem cuts never assembled before. With this well-organized compendium of everything that you’ll ever need to estimate mounted gemstone weights, you’ll be able to buy better, sell stronger and appraise more confidently then you have ever done, whether you are a novice or a seasoned professional.

ISBN 0-9666370-0-3