The Graff Cushion Cut
This 11.89-carat D-color, Internally Flawless cushion shaped diamond has been featured a number of times in the Graff's advertisements in the New York Times newspaper. Cushion is one of the oldest diamond cuts there is. Many of the older cushion cuts, often called Old Mine Cuts, have steep crown and pavilion main facets, a culet facet, and a small table. When Marcel Tolkowsky pioneered the modern round brilliant around 1913, the angles could be incorporated into cushion cuts, thus giving them more fire.
This is another one of those diamonds that might not be famous right now, but maybe someday. Its size is not great compared to other famous diamonds, but its fine color and clarity make it unusual, combined with its relatively uncommon cut.