gold·en ju·bi·lee di·a·mond | ˈgōl-dən jü-bə-(ˌ)lē dī-(ə-)mənd
noun
A 545.67 carat brown diamond, discovered in 1985, and currently the largest cut and faceted diamond in the world
The Golden Jubilee Diamond was discovered in 1985 in South Africa.
The Diamond is currently owned by the king of Thailand and is on display at the Royal Museum at Pimammek Golden Temple Throne Hall in Bangkok.