Most of us are accustomed to thinking of diamonds as sparkling white stones. Were you aware that black diamonds also exist?
Black diamonds are real, bonafide diamonds, however, they are less common than white diamonds. There are black diamonds that have been artificially changed to black, however, there are also naturally occurring ones.
Naturally occurring black diamonds are also named “carbonado”. They are only found in Africa and Brazil. These stones have a chemical composition that is the same as white diamonds, however, the structure of their crystals is not the same. This causes them to have a different color. There are two explanations for the manner in which they were created. Some people claim that they originated in outer space and came from an asteroid that entered the Earth’s atmosphere about two million years ago.
Another explanation regarding the formation of black diamonds is that they were formed in the earth under high pressure.
Man-made ones are created in a laboratory by altering white diamonds with radiation or heat, resulting in the color change.
Man-made diamonds are much more common the naturally occurring black diamonds. Naturally occurring ones do exist, but they are fairly rare. Be aware, if you are going to purchase a black diamond, that there is a high chance it is not a naturally occurring stone.
Many people are under the impression that they are diamonds that are so flawed with inclusions, they appear black. The reality is that the color of naturally occurring black diamonds is a result of their structure, which impacts the manner in which light is reflected by them.
The color of synthetic ones is due to their treatment, not the structure of the diamond. The original stone that had its color changed may
have been a stone of high quality, but that is unlikely because black diamonds are usually less expensive than white ones. It is not likely that someone would alter an expensive white stone of high quality. However, you probably do not care about the clarity and color of the original stone since they do not affect the appearance of the stone after it is black.
The guidelines that are used to evaluate the quality of white diamonds is really not applicable in the case of black diamonds. These stones possess a low clarity simply due to their structure and color.