JEFFRIES, DAVID. A TREATISE ON DIAMONDS AND PEARLS

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JEFFRIES, DAVID. A TREATISE ON DIAMONDS AND PEARLS

London: R. Lea and J. Nunn, 1800. 118pp.

Sinkankas states, "The first book in English to describe how diamonds and pearls can be evaluated on the basis of the factors of size and style of cut...." Today this is a very interesting and informative text on "old mine" cut diamonds.