The giant miner is sharpening its focus on its iron ore, copper, and aluminum and lithium businesses.

Rio Tinto Group has dug its last diamond and will close its final mine for the precious gemstone, marking the end of a ...

After 23 years of operations and more than 150 million carats of rough diamonds produced before exhausting its economic ...

Diavik has officially ceased operations after yielding more than 150 million carats of rough diamonds since production began ...

Canada's Diavik diamond mine has closed after 23 years of production, a victim of the steep fall in diamond prices ...

Gaborone, Botswana — Botswana says one of the largest diamonds ever found has been unearthed at one of its mines and will be put on show on Thursday. The Botswana government believes the huge ...

Global mining giant Rio Tinto has marked the last day of production at its Diavik diamond mine in the Northwest Territories.

Diamonds are uniquely valuable due to their extreme hardness and exceptional thermal conductivity, making them the hardest known natural material, about 58 times harder than any other, according to ...