Establish a fundamental understanding of the gemstone world with the Dictionary of Gems and Gemology. This seminal work became the single most important and authoritative reference text for professionals, students, and enthusiasts in the rapidly developing field of gemology.Shipley, the founder of the Gemological Institute of America, created this dictionary to standardize and define the technical, trade, and scientific terms used in the study of precious stones. It remains celebrated for its clarity, precision, and comprehensive coverage, providing a common language for the industry.This book is an indispensable classic for gemologists, jewelry professionals, students, mineral collectors, and appraisers seeking the original, authoritative, and time-tested definitions that underpin the entire field of modern gemology.