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The Cullinan Diamond is the largest gem-quality rough diamond ever found, [2] weighing 3,106 carats (621.20 g), discovered at the Premier No.2 mine in Cullinan, South Africa, on 26 January 1905. It was named after Thomas Cullinan, the owner of the mine. In April 1905, it was put on sale in London, but despite considerable interest, it was still ...
The Cullinan Diamond is the largest rough gem-quality diamond ever found, at 3,106.75 carats (621.350 g). [1] It was found by Frederick Wells, surface manager of the Premier Diamond Mining Company in Cullinan, Gauteng, South Africa, on 25 January 1905. The stone was named after Sir Thomas Cullinan, the owner of the diamond mine.
Koffiefontein mine is one of the world’s top diamond mines by average value per carat and produces exceptional white and coloured diamonds, a regular proportion of which are of between 5 and 30 carats. In 1994, a 232.34 carat diamond was recovered at Koffiefontein, being the largest rough diamond ever produced by the mine. [12]
The 94.4-carat pear-shaped Cullinan III and the 63.6-carat square-cut Cullinan IV were originally set into Queen Mary's coronation crown (which also held the famous Koh-i-Noor diamond).
Eventually sold to I. K. Gulland of London, where it was broken up into small pieces as industrial diamond drills. [7] 3106.75: Cullinan Diamond South Africa: Premier Mine: 1905: British Crown (I and II) and Charles III (III–IX) The largest gem-quality diamond ever discovered. 2492 [8] Motswedi Botswana: Karowe Mine [9] 2024: Lucara Diamond ...
There are a limited number of commercially available diamond mines currently operating in the world, with the 50 largest mines accounting for approximately 90% of global supply. [1] Diamonds are also mined alluvially over disperse areas, where diamonds have been eroded out of the ground, deposited, and concentrated by water or weather action.
Sir Thomas Cullinan (12 February 1862 – 23 August 1936) was a South African diamond magnate. He is renowned for giving his name to the Cullinan Diamond , the largest diamond ever discovered, and as owner of the Premier Mine , now renamed the Cullinan Mine, from which the famous gem was extracted on 26 January 1905.
The 813-karat diamond (which is roughly 407 times the size of the average US engagement ring, for reference) was mined from Lucara's "Karowe" mine in Botswana in late November of last year.