04 Argyle ( Australia )
top 10
04 Argyle ( Australia )
The Argyle mine in Western Australia is estimated to contain 140 million carats of diamond . Owned and operated by Rio Tinto , the mine has been in production since 1983 with peak production expected to hit 20 million carats a year . The Argyle mine is currently transitioning from an open-pit mine to underground , becoming the first block cave mine in Western Australia . The mine is expected to produce until 2020 .
44 September 2014