DeYoung Red Diamond

DeYoung Red Diamond
DeYoung Red Diamond
Weight5.03 carats (1.006 g)
ColorDeep red with slight brown tint
CutModified round brilliant
OwnerSmithsonian Institution
Estimated valueUSD$5 million or lower

38°53′27.2″N 77°01′32.2″W / 38.890889°N 77.025611°W / 38.890889; -77.025611 The DeYoung Red Diamond is a 5.03-carat unmounted rare red diamond. It is the third-largest red diamond in the world, and the only one on public display. Sydney DeYoung (for whom the diamond is named) obtained the diamond, which was mistaken for a garnet, at a flea market. The diamond was given to the Smithsonian Institution after DeYoung's death in 1986.