Por un escritor de hombre misterioso
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: Billion-year-old black diamond sold for £3.16m
555 carat 'Space Diamond' Sells for $4.3 Million - IGI
The 20 Most Incredible Natural Diamonds at Auction in 2022
World's biggest black diamond sold for $4.2M in London
Are Lab Diamonds as Good as Real Natural Diamonds?
This huge black diamond just sold for $4.3 million. No one knows where it came from., Black Diamond
Black Diamond: A Mystery of the French Countryside: 9780307744630: Walker, Martin: Books
A collecting guide to the jewellery of Van Cleef & Arpels
Black 555.55-carat diamond dubbed 'The Enigma' sells for £3.1 million at auction
The Largest Diamond in the World - Clean Origin Blog