The carbonado black diamond is an extremely rare natural occurrence. Dating back to 2.6 to 3.8 billion years ago, they are said to have been formed from a meteoric impact or from a diamond-bearing asteroid that collided with Earth. It contains traces of nitrogen and hydrogen abundant in space, as well as osbornite, a mineral uniquely present in meteors.

In addition to its record-breaking size, the jewel is imbued with numerical significance. It’s shape is inspired by the Middle Eastern palm-shaped symbol, the Hamsa – a symbol of protection from the “evil eye.” The Hamsa is associated with the number five, and the diamond is not only 555.55 carats in size, but it also contains exactly 55 facets.

“We are honored that Dubai has been chosen as the first stop for this exceptional rarity and are thrilled to play a part in its journey, which began so many millions of years ago,” said Katia Nounou Boueiz, Head of Sotheby’s UAE, in a released statement.

The diamond will be available to purchase with cryptocurrency, a first in the UAE.

“This is the first time we are introducing our cryptocurrency offering in the UAE, a move that is in line with the government’s own commitment to exploring new digital, technological and scientific advances. Unveiling this one-of-a-kind stone – both in our DIFC gallery and at the unparalleled Dubai Diamond Exchange – is a clear continuation of our dedication to showcasing the best of the best in the UAE,” added Boueiz.

“The Enigma” is previously unseen on the market and has never been exhibited to the public before.