Samuels, S.K. (2014) Imperial Jade of Burma and Mutton-Fat Jade of India: Mining, Trade, and Use from Antiquity to the Present. SKS Enterprises, Inc., Tucson, AZ, USA, 248 pp. ISBN: 978-0-9725323-4-1

Gübelin, Eduard J. & Koivula, John I. (2005) Photoatlas of Inclusions in Gemstones, Volume 2. Opinio Publishers, Basel, Switzerland, 830 pp. ISBN 978-3855040957

Gübelin, Eduard J. & Koivula, John I. (2005) Photoatlas of Inclusions in Gemstones, Volume 3. Opinio Publishers, Basel, Switzerland, 672 pp. ISBN 3-03999-047-4

A discussion of the literature of ruby and sapphire (corundum), with particular emphasis on the most collectible books covering ruby and sapphire around the world.

The Gübelin Foundation (2014) The Eduard Josef Gübelin Story: The Art and Science of Gems. London. Gübelin Group, Lucerne, and Unicorn Press, 306 pp., illus., hardcover, ISBN 978-1-91006-540-2