Silver wedding rings can also be designed with diamonds. Diamonds can come in an array of colors as well as white, pink, yellow, blue and even green. But the rarest and most expensive diamond of them all is the black diamond. Black diamonds are formally known as carbonados diamonds, a name coined by the Portuguese in reference to their resemblance to porous charcoal.
These diamonds are the hardest substance known, and can only be cut with another carbonados. While diamonds of other colors have been found all over the world, the black diamond has only been found in Brazil and Central Africa. There is a great deal of mystery surrounding the creation of the black diamond.
Traditional Black Diamonds
Traditional black diamonds are made entirely of carbon atoms, and formed a hundred miles beneath the Earth’s surface through intense heat and pressure. These diamonds are believed to have reached the Earth’s surface through a series of volcanic eruptions between one billion and 100 million years ago. Black diamonds, on the other hand, are believed to be 3.8 million years old.
Black diamonds are composed of carbon atoms and small amounts of hydrogen. This has led some prominent scientists to theorize that black diamonds are formed in hydrogen rich interstellar space, most likely by the explosion of a stellar supernova, and came to Earth in via an asteroid crash some 2.8 million years ago.