The scarcity of colored diamonds and their incredible hues increase the demand for such gems. These stones look incredibly sophisticated, even hypnotizing. Unlike all other diamond varieties, these are entirely opaque – a characteristic that makes them unique.
Some get their color as the result of a heating treatment, which means that they’re not natural. Diamonds that get their tone from nature are called natural fancy black diamonds. While heated black diamonds cost about 300 dollars per carat, a stone that gets its color from nature will cost anywhere between 3,000 and 5,000 dollars per carat.
Fancy diamonds come in only one color intensity. Graphite clustering throughout the diamond is the one that contributes to its color. In essence, these are white diamonds that feature inclusions throughout the gem.
Such a big number of graphite inclusions is rare, which is why black natural diamonds are difficult to find. As a result, some producers have started enhancing or evening out the color through a heating process. It’s obvious why such diamonds are a lot less valuable than a gem that’s naturally colored.
While many mines throughout the world produce colored diamonds, black ones are extracted in just a few places. Locations in Brazil and Central Africa are the only ones that produce natural fancy diamonds. There’s some evidence that the territory currently forming Brazil may once have been a part of Africa. Thus, black diamonds probably formed in just one part of the world. Geological shifts have now contributed to the presence of such unusual diamonds in the mines of two countries.
Researchers have found out that black stones are much older than other diamond varieties. Some date their formation back to four billion years ago. A diamond that is black consists of millions of small crystals stuck to each other. Its structure makes it quite different from other varieties and determines its rarity.
While researchers are pretty certain about the way in which these types of diamonds have formed, there are alternative theories. According to some, these unusual gems have an extraterrestrial origin.
There may be some evidence that these diamonds traveled a long time ago to Earth on asteroids. The fact that they are porous, which makes them unlike all other diamonds, could provide some additional evidence in support of theory.
Stephen Haggerty, a Florida geoscientist, is one of the strongest supporters of the extraterrestrial origin theory. In Haggerty’s theory, the material source that contributed to the formation of black diamonds is a supernova. The supernova occurred at least 3.8 billion years ago, which corresponds to the dating of these particular diamonds.
No matter which theory is the correct one, these diamonds are mesmerizing. Their unique appearance has turned them into a favorite for many celebrities. Kat Von D, Carmen Electra and even Carrie Bradshow are famous supporters of the unusual gems.
These are beautiful and a bit more affordable than other colored diamonds. A black diamond would make for a one-of-a-kind engagement ring. It’s much more noticeable than other kinds of gems and the color will always be fashionable.