CULLINAN, a town in South Africa, 25° 43' S., 28° 34' E., which grew up round the Premier diamond mine, and dates from 1903. It is connected by a branch railway (6 m.) with Ray ton, on the Pretoria-Delagoa bay line, and 24 m. E. of Pretoria. Its population includes 1,779 white and about io,000 natives and coloured. Here was discovered, in 1907, the Cullinan diamond, 3,0254 carats, which was presented by the Transvaal Government to King Edward VII., two stones cut from it being used for the British sceptre and crown. (See DIAMOND.)