'Don't Look Up': Diamond that came from meteorite to go on sale in London

Space diamonds are extremely rare, occurring. naturally in only South Africa and Brazil
Space diamonds are extremely rare, occurring. naturally in only South Africa and Brazil   -   Copyright  Kamran Jebreili/AP
By Tim Gallagher  with AP

An ‘alien’ diamond worth nearly €6 million is to be auctioned off in London next month.

The out of this world jewel landed in Dubai ahead of an auction set to be held by Sotheby’s in February.

Sotheby's calls the 555.55-carat black diamond — believed to have come from outer space — "The Enigma." The rare gem was shown off on Monday to journalists as part of a tour of Dubai and Los Angeles before it heads to the UK capital.

Sotheby's expects the diamond to be sold for at least £5 million (€5,980,356).

The auction house plans to accept cryptocurrency as a possible payment as well.

Five is the magic number

Sophie Stevens, a jewellery specialist at Sotheby's Dubai, told The Associated Press that the number five bears an important significance to the diamond, which has 55 facets as well.

"The shape of the diamond is based on the Middle-Eastern palm symbol of the Khamsa, which stands for strength and it stands for protection," she said. Khamsa in Arabic means five.

Kamran Jebreili/AP
The auction will take place in London after a tour of Dubai and Los AngelesKamran Jebreili/AP

"So there's a nice theme of the number five running throughout the diamond," she added.

Stevens also said the black diamond is likely from outer space.

"With the carbonado diamonds, we believe that they were formed through extraterrestrial origins, with meteorites colliding with the Earth and either forming chemical vapour deposits or indeed coming from the meteorites themselves," she said.

Black diamonds, also known as carbonado, are extremely rare, and are found naturally only in Brazil and Central Africa. The cosmic origin theory is based on their carbon isotopes and high hydrogen content.