A unique two-volume treasure house of information on the world's most precious gemstones and diamonds. Luxuriously printed and bound, this priceless reference tome is the result of long and painstaking research and considerable experience of two renowned gem experts, industrialists and dealers. This compendium examines every facet of gemstones and every carat of knowledge useful to the gem dealer, the jeweler and the gemologist. These books present a wide range of information on precious stones from the most common to the rarest, including the emerald, the ruby and the sapphire. The section on diamonds is 320 pages long and includes sources and mines around the world from ancient times until today, such as in Africa, Russia, Australia and Canada, A special chapter is dedicated to the De Beers diamond empire and the diamond pipeline. Synthetic gems and diamonds are dealt with as well as modern imitations of diamonds, such as cubic zirconia, strontium titanate, YAG and others. Several chapters examine the modern processing of the diamond, including laser cleaving and automatic cutting. A major part of the book is devoted to diamond quality grading-the 4 C's: clarity, color, cut and carat. This masterpiece of books is considered a necessary companion to every gem dealer, jeweler, industrialist and gemologist alike

First English edition, KAL Printing House, 1996.

1004 p. 2 Vol boxed Set: . vol 1: ISBN 9659007205 xxiv, 500 p. vol 2: ISBN 9659007213 xi, pp 501-1004.

Black cloth, white lettering and graphic, graphic embossed color dust jackets.

Color and b&w illustrations, diagrams, First published in Hebrew in 1986, second revised edition in Hebrew in 1995.

This book is used very lightly! It has the previous owners name written inside & cover has some smudges...other wise it is in Perfect condition.