Antoinette Matlins, PG, is an internationally respected gem and jewelry expert, author, and lecturer. Honored with the international Accredited Gemologists Association's highest award for excellence in gemology, Ms. Matlins is the author of many books that are widely used throughout the world by consumers and professionals in the gem and jewelry field. Her books include Jewelry & Gems: The Buying Guide (almost 400,000 copies now in printthe only book of its kind ever offered by Consumer Reports); The Pearl Book: The Definitive Buying Guide; Colored Gemstones: The Antoinette Matlins Buying Guid...