English

Diamonds and other gems

Includes bibliographic references (p. 141-149) and index. Partial contents: An introduction to diamonds -- An inquiry into diamonds -- What price diamonds? [there is no valuation in this chapter] -- A chapter on large gems -- Rubies and sapphires -- Emeralds -- A critical bibliography. Partial contents: Appendices: I. Basic gemological properties for diamond, corundum, emerald -- II. Definition of "gem" -- III. Weight of the Cullinan diamonds in both old and metic carat -- IV. Duties on diamonds and other precious stones (excepting pearls) according to the Tariff Act of 1922 (.R. 7456) -- V. Arbitrary classification of the colors common to diamonds: Galconda [Golconda], River, Jager, Top Wesselton, Wesselton, Top Silver Cape, Silver Cape, Cape, Yellow, Brown.

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