Laid out like an orchestra in a quiet gallery room, 40 colorful gems have one of the planet’s most distinguished conductors: a red diamond, 2.33 of the rarest carats in the world, shining like ...

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 ...