Botswana seeks new De Beers diamond sales deal by end of April

Rio Tinto today unveiled the largest Fancy Red diamond in the history of its Argyle Pink Diamonds Tender during its Australian preview.

The Indian Commodity Exchange Limited (ICEX) will start trading in 1 carat/100 cent contracts, to later add 50 cent and 30 cent contracts.

The region, preserved as a national reserve for more than three decades, is thought to be rich in gold, iron ore, copper and other minerals.

It's the first time the event has been reproduced in a lab environment similar to the one within Neptune and Uranus.

Experts and mining companies fear some of the modifications that go in effect in November, will result in hefty taxes, higher research costs and decrease interest from foreign investors.

The miner said it remains cautious about the state of the global market for both rough and polished diamonds, noting that financing challenges persist.

Water level makes it "too risky" for rescuers to try accesing area where miners were believed to be when the accident happened.

The world’s top diamond producer by output in carats still expects to produce about 39 million carats this year.

The diamond miner decided to offload those units to focus on its Tongo-Tonguma project in Sierra Leone, which has the potential to generate earnings of $45 million a year.