The 127.01 Carat Portuguese Diamond The 127.01 Carat Portuguese Diamond
Mineral Cabinet

Smithsonian Gem & Mineral Collection

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The 127.01 Carat Portuguese Diamond
 
A stunning close-up of one of the world's largest diamonds. The Portuguese Diamond is 127.01 carats, the largest cut diamond to come from Brazil, and the 13th largest diamond in the world. This stone is part of the collections of the Smithsonian's National Museum of Natural History.
Last modified 2026-08-09 MZ Smithsonian photos by Dane A. Penland
Copyright 1992 Smithsonian Institution 		The 127.01 Carat Portuguese Diamond