Monday, July 26, 2010

A Few Facts about Black Diamonds

Black diamonds are also called “carbonados,” reflecting their chemical make-up of pure black carbon. All diamonds of any color are chemically composed of carbon that through eons of time, became what we know today as diamonds. They don’t come out of the earth as white, sparkly gemstones, but must be extracted, cut and immaculately polished. Black diamonds are not truly black; they are diamonds that contain a large amount of dark inclusions that give them their dark appearance. These inclusions are actually specks of the carbon that creates all diamonds.

Black diamonds, so far, have only been mined in Brazil and Central Africa. Both countries have a well-known history of producing large, rich diamond strikes. Australia is one of the most prolific producer of diamonds and fire opals, but as yet has not hit a strike of black diamonds.

To enhance their color, black diamonds are treated with an electron beam that causes no harm to the stone. This process can be used with other colored diamonds, but is recommended only for the black diamond’s chemical carbon inclusions. The treated stone is then carefully cut into various carat weights and styles that enhance their dark color.

No comments:

Post a Comment