This huge black diamond just sold for $4.3 million. ... Weighing in at 555.55 carats, or 111.11 grams, the carbonado diamond called the Enigma has a past as hazy as its smoky black hue.

An extremely rare diamond believed to be from outer space will be going up for auction next month. Auction house Sotheby’s Dubai will be selling the 555.55-carat black diamond, known as "The ...

The black diamond is expected to sell for at least 5 million British pounds, or $6.8 million. Auction house Sotheby’s is set to auction a rare jewel in February.

Dating from 2.6 to 3.8 billion years ago, the stone is a carbonado black diamond, according to the GIA report. These unique diamonds contain traces of nitrogen, hydrogen, ...

A 555-Carat Black Diamond Is Going Up for Auction. Did It Really Come From Space? An auction house claims that the carbonado came from interstellar space, but a geologist we spoke to isn't so sure.

Black carbonado diamonds are among the rarest gems on Earth, and a 555-carat specimen going to auction in February is especially noteworthy.As the Associated Press reports, "The Enigma" diamond is ...

The post Canadian Mining Firm Lucara Discovers Epic 2,492-Carat Diamond From Karowe Mine first appeared on Bored Panda. ... the Sergio is solid black carbonado diamond and besides its unusual ...