"The Secret Teachings of Gemcutting" is a comprehensive guide to classic gemstone cutting designs, featuring 50 full-color designs with cutting advice and historical background. This collection includes industry-standard designs found in high-end and bespoke jewelry. The book also includes 30 pages of essential gemology for cutters, covering topics such as gemstone design, optics, crystal systems, and more. This is the first time these designs have been compiled for public consumption and is a valuable resource for gem cutters and jewelers alike.