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
Cempaka diamond mine Cempaka diamond mine The Cempaka mine is one of the largest diamond mines in Indonesia and in the world. The mine is located in South Kalimantan, Borneo. The mine has estimated reserves of 32.9 million carats of diamonds. The hundreds hoping for fortune at Indonesia's largest diamond mine 1.2k Share Tweet BY VICTORIA HOSingapore Nov 09, 2015 For the 500 or so miners that toil at the Cempaka mine, Indonesia's largest diamond producer, each day provides hope that one of them will find the next massive rare diamond there. Cempaka is in South Kalimantan in Indonesia, and has provided some