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Smithsonian National Museum of Natural History

How was Tavernier’s Blue Diamond cut?

In India, gems were typically cut to retain size and weight. Tavernier's Blue Diamond was originally cut to an asymmetric, somewhat triangular shape, likely following this fashion. To preserve the weight and size of the diamond, gem cutters polished its natural faces without attempting to enhance its sparkle or obtain a geometric shape (Morel 1988). It is not known if the diamond was cut in India by Indian cutters or if it was cut elsewhere in the Indian style.

Source Tavernier 1676

Drawing of the blue diamond sold by Tavernier to King Louis XIV

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