The Koh-i-Noor diamond is valued at $2,500,000—a sum which could purchase 590,000 tons of coal. If this diamond was dropt into the depths ot the sea and lost forever, no one in the world would ...

This brings us to the world’s richest diamond mine, worth an estimated £1 billion, that sits in the heart of an ancient volcanic crater in Botswana. The Jwaneng Diamond Mine, nicknamed the ...

The Debswana Jwaneng Mine in Botswana, is the world's richest diamond mine by value, being worth about £1 billion. The mine is managed by Debswana, which is a joint collaboration between the ...