Argyle diamond mine of tunnelling, the Argyle underground block cave development was officially completed. In 2013, Argyle is estimated to produce 10.2 million carats with an average per carat price of $25/carat. The Argyle diamond mine is also notable for being the first successful commercial diamond mine exploiting a volcanic pipe of lamproite, rather than the more usual kimberlite pipe; much earlier attempts to mine diamonds from a lamproite pipe in Arkansas, USA were commercially unsuccessful. The Argyle mine is owned by the Rio Tinto Group, a diversified mining company which also owns the Diavik Diamond Mine in Canada and the Murowa Diamond
Venetia Diamond Mine chairman. In 2004 the mine had 955 employees and recovered 7,187,300 carats (1437.5 kg) of diamonds from 5,871,000 metric tons of ore. The Kolope River flows 8 km to the west of the mine. Surface water storage dams have been built on two of its tributaries. Venetia Diamond Mine The Venetia Diamond Mine is South Africa's largest producer of diamonds. It is situated close to the South African town of Alldays in the Limpopo province and is located within the 360 km² Venetia Limpopo Nature Reserve. The open-pit mine is one of De Beers’ six remaining diamond mines in South