Category
page 1Diamond cutting
George Frederick Kunz
American mineralogist (1856-1932)
diamond cutting
Faceting of a rough diamond to increase its brilliance
Israel Diamond Exchange
Diamond exchange in Tel Aviv District, Israel

Marcel Tolkowsky
Belgian mathematician and gemologist (1898–1991)
Royal Asscher Diamond Company
Dutch diamond-cutting company and inventor of the Asscher cut
diamond cut
gemstone cut in a particular shape with numerous facets so as to have an exceptional brilliance
Bernard Oppenheimer
South African businessman