American Museum of Natural History Research Library
author: American Museum of Natural History

"Black Orloff" Diamond (Exhibition)
birth: 1951 March 19
death: 1951 April 2
Exhibition. Opened March 19, 1951 and closed April 2, 1951. Located in the Morgan Memorial Hall of Minerals and Gems at the American Museum of Natural History. The "Black Orloff" Diamond exhibition presented the world's largest black diamond.
Summary
The "Black Orloff" Diamond exhibition presented the world's largest black diamond. The gem was once among the crown jewels of Russia and is considered the most famous diamond of its kind in the world. Frederick H. Pough, Curator of Physical Geology and Mineralogy at the Museum, stated that the showing was arranged with the present owner, Charles Winson. The diamond was on view in the Morgan Gem Hall of the American Museum of Natural History from March 19 though April 2, 1951.
Individuals and institutions involved in the creation of the exhibition: Frederick H. Pough, AMNH Curator of Physical Geology and Mineralogy.