Gem-Stones and Their Distinctive Characters

The chemistry, properties and tests of precious stones

John Mastin

A Text-Book of Precious Stones for Jewelers and the Gem-Loving Public

Frank Bertram Wade

Leisure hours among the gems

Augustus C. Hamlin

Shakespeare and Precious Stones Treating of the Known References of Precious Stones in Shakespeare's Works, with Comments as to the Origin of His Material, the Knowledge of the Poet Concerning Precious Stones, and References as to Where the Precious Stones of His Time Came from

George Frederick Kunz

A Hand-book of Precious Stones

Meyer D. Rothschild

Gems in the Smithsonian Institution

Paul E. Desautels