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From mid-July 1871 [3] to 1914 up to 50,000 miners dug the hole with picks and shovels, [4] yielding 2,720 kilograms (6,000 lb; 13,600,000 carats) of diamonds. The Big Hole has a surface of 17 hectares (42 acres) and is 463 metres (1,519 ft) wide. It was excavated to a depth of 240 metres (790 ft), but then partially infilled with debris ...
The Eureka Diamond was the first diamond discovered in South Africa. It originally weighed 21.25 carats (4.250 g), and was later cut to a 10.73-carat (2.146 g) cushion-shaped brilliant, which is currently on display at the Mine Museum in Kimberley. The discovery of diamonds in South Africa led to the Kimberley Diamond Rush, and marked the ...
053. Kimberley is the capital and largest city of the Northern Cape province of South Africa. It is located approximately 110 km east of the confluence of the Vaal and Orange Rivers. The city has considerable historical significance due to its diamond mining past and the siege during the Second Anglo-Boer war.
The Tiffany Yellow Diamond is one of the largest yellow diamonds ever discovered. Its carat weight was originally 287.42 carats (57.484 g) in the rough when discovered in 1878 in the Kimberley mine in South Africa. It was cut into a cushion shape of 128.54 carats (25.108 g) with 82 [1] facets—24 more than a traditional round brilliant—to ...
The Kimberley diamonds were originally found in weathered kimberlite, which was colored yellow by limonite, and so was called "yellow ground". Deeper workings encountered less altered rock, serpentinized kimberlite, which miners call "blue ground". Yellow ground kimberlite is easy to break apart and was the first source of diamonds to be mined.
The Argyle Diamond Mine was a diamond mine located in the East Kimberley region in the remote north of Western Australia. Argyle was at times the largest diamond producer in the world by volume (14 million carats in 2018 [1]), although the proportion of gem-quality diamonds was low. It was the only known significant source of pink and red ...
Cullinan Diamond. 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 ...
Koffiefontein Mine is a diamond mine situated in the Free State province, about 80 km from Kimberley, South Africa. It is one of the many Kimberley mines of which Kimberley mine, de Beers mine, Dutoitspan, Bultfontein and Wesselton are its more famous neighbours. The mine was opened in 1870 and consisted of 1200 claims and worked at a large ...