This huge black diamond just sold for $4.3 million. No one knows where it came from.

Geologists still can't say for sure whether the enormous stone called the Enigma crystallized in Earth’s mantle or fell from outer space.

The Enigma Is The Largest Fancy Black Natural Diamond In The World

This huge black diamond just sold for $4.3 million. No one knows where it came from.

This huge black diamond just sold for $4.3 million. No one knows where it came from., Black Diamond

The Enigma: Billion-year-old black diamond sold for £3.16m

Black diamond, largest ever cut, sells for £3.2 million

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World's biggest black diamond sold for $4.2M in London

California woman finds 4-carat diamond at Arkansas' Crater of Diamonds

The Largest Diamonds in the World (and Who Owns Them in 2024) –

Black 555.55-carat diamond dubbed 'The Enigma' sells for £3.1 million at auction