Christie’s is getting ready to present The Golconda Blue, the largest Fancy Vivid Blue Diamond ever to be offered at auction.

The largest diamond found in 119 years has been unearthed ... atoms are squeezed together at high pressure deep under the earth's surface. Scientists believe most diamonds are at least a billion ...

The Aykhal diamond mine, which sits the near the remote Aykhal settlement in Sakha Republic in Siberia, is run by Russia's ...

Alrosa, a Russian company, has unveiled its largest-ever 100-carat diamond. The company spent about two years cutting and polishing the diamond, named New Sun—a rare, vivid yellow diamond ...

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 a ...

IN A TWIST of geological poetry, Rio Tinto’s Diavik Diamond Mine in Canada’s remote Northwest Territories has delivered one ...

Chip Clark The largest faceted diamond in the National ... any other way of traveling down to the upper mantle of the Earth. How do diamonds travel to the surface of the Earth?

Botswana, a sparsely populated and arid country in southern Africa, is the biggest producer of diamonds by value and the second biggest by volume behind Russia. Diamonds account for around 80% of ...