Newly updated and expanded, Diamonds gives you all the information you need to buy, collect, sell--or simply enjoy--diamonds with confidence and knowledge.

Whether you are buying a diamond for an engagement ring, anniversary, to commemorate a special moment or for personal pleasure, today it is more important than ever to understand what you are buying. There are new shapes and cuts, fancy colors, high-tech treatments and sophisticated frauds. There are new ways to buy--such as Internet auctions. Buyers need a source of expert guidance.

Practical,...