The 98.6 Carat Bismark Sapphire The 98.6 Carat Bismark Sapphire
Mineral Cabinet

Smithsonian Gem & Mineral Collection

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The 98.6 Carat Bismark Sapphire
 
A spectacular close-up of the Bismark Sapphire, one of the world's largest. This 98.6 carat gem is exceptionally large and well colored. Originally from Sri Lanka, it is part of the collection of the National Museum of Natural History. Also shown are many of the diamonds which encrust both the stone and its necklace. Smithsonian's National Museum of Natural History.
Last modified 2026-08-09 MZ Smithsonian photos by Dane A. Penland
Copyright 1992 Smithsonian Institution 		The 98.6 Carat Bismark Sapphire