527 pp. Numerous plates, mostly from photographs. 10x6½, rebound in cream cloth with pictorial paper label laid down on front cover and spine, top edges gilt, other edges untrimmed. The Hobby Club Edition, limited to 40 copies for members of the Hobby Club, 1 for the Library, and three for presentation to others (44 total copies).

Includes: Laid in typed letter to Frederick W. Lehman and tipped in limitation statement with list of Hobby Club members, both signed by the author. "A complex, large work, by far the best yet written on the subject..." Also noted by Sinkankis as the scarcect of Kunz's major works, containing information that does not appear elsewhere in the gemological literature. -Sinkankis 3702.