A bigger black diamond was discovered in Brazil in the late 1800s, but it was found above ground and was believed to have ...

Others maintain that carbon atoms (or, in a minority opinion, grains of meteoritic black graphite) within the hurtling meteorite itself transformed instantly into diamond during the extraordinary ...

Last week at Sotheby’s Dubai, a 555.55 carat black diamond called “The Enigma ... curator of the meteorite collection at the Smithsonian National Museum of Natural History.

A larger black diamond was also found above ground in Brazil in the late 1800s, but that is believed to have been part of a meteorite. Lucara did not estimate the diamond's value or comment on its ...