The 228.31-carat pear-shaped diamond is being called "The Rock" and will lead the Geneva Magnificent Jewels sale, part of Christie's Luxury Week. It is expected to be sold for between $20-$30 million.

What a rock! Rare large pink diamond discovered. 0:46. This photo supplied by Lucapa Diamond Company on Wednesday, July 27, 2022, shows the 170 carat pink diamond, right, recovered from Lulo, Angola.

Rare rock with 30,000 diamonds examined Date: January 5, 2015 Source: University of Tennessee at Knoxville Summary: Diamonds are beautiful and enigmatic.

The largest white diamond to ever come up for auction has been sold for 21,681,000 CHF ($21.9 million) at Christie’s in Geneva. The 228.31-carat, pear-shaped gemstone – dubbed “The Rock ...

The world's deepest, rarest diamonds revealed a big secret about our planet's interior. ... The rarest rocks on Earth. Blue diamonds — or type IIb diamonds — are extremely rare.

While it may look like a blazing red ruby, the 2.33-carat Winston Red Diamond is just that—a diamond. One of the rarest diamonds in the world, the Winston Red Diamond is on display at the Smithsonian ...

A Pear-shape Type IIa Fancy Pink diamond ring and a Cushion-cut Type IIb Fancy Blue diamond ring are now available by private appointment at selected jewelry stores nationwide. These rare diamonds ...

Pink diamonds are extremely rare and coveted. But a discovery made in Western Australia near a now-closed mine may help reveal new deposits of the jewels, researchers say.

Blue diamonds are very rare, comprising only about 0.02% of mined diamonds. PRETORIA, South Africa -- Botswana unveiled the largest rare blue diamond ever discovered within its borders: a super ...

The tiny, green crystal, scarred from its 325-mile trip to the surface, was bought from diamond miners in Juna, Brazil. The mine's ultradeep diamonds are misshapen and beaten up by their long journey.