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Small rough diamonds from Russia. Crystals are about 0.7 to 0.9 mm in size. 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]
Argyle diamond mine The open pit of the Argyle diamond mine. A large mining truck is visible on the road for scale. Location Argyle Diamond Mine Location in Australia Location Lake Argyle State Western Australia Country Australia Coordinates 16°42′44″S 128°23′51″E / 16.71222°S 128.39750°E / -16.71222; 128.39750 Production Products Diamonds History Opened 1985 Closed ...
The Mir mine was the first developed and the largest diamond mine in the Soviet Union. [10] Its surface operation lasted 44 years, finally closing in June 2001. [ 9 ] After the collapse of the USSR in the 1990s, the mine was operated by the Sakha diamond company, which reported annual profits in excess of $600 million [ clarification needed ...
Diavik Diamond Mine is an industrial complex set in a remote, subarctic landscape. It consists of four kimberlite pipes associated with the Lac de Gras kimberlite field and is located on an island 20 km 2 (7.7 sq mi) in Lac de Gras informally known as East Island.
The mine had production of 1,800,000 carats (360 kg) in 2000 and 2,600,000 carats (520 kg) in 2001. The mine's production is 35% gem quality, compared to a global average of 20%; the diamonds produced at Catoca have an average value of US$75–$100 per carat ($375–500/g). Estimated reserves are 60 million carats (12 tonnes).
The Jwaneng diamond mine is the richest diamond mine in the world, [2] and also the second largest in the world. [3] It is nicknamed "the Prince of Mines", [ 2 ] and is located in south-central Botswana about 170 kilometers (110 mi) southwest of the city of Gaborone .
On 13 March 1888 the leaders of the various mines decided to amalgamate the separate diggings into one mine under De Beers Consolidated Mines Limited, with life governors such as Cecil John Rhodes, Alfred Beit, and Barney Barnato. This huge company further worked on the Big Hole until it came to the depth of 215 metres, with a surface area of ...
On 21 September 2008 Gem Diamonds, Ltd. announced that it found a 95.6 grams (478 carats) diamond of high quality, making it the 20th largest diamond ever found. It is a type II D colour, with potential to yield a 30 grams (150 carats) cut stone.