The answer is crude oil(petroleum)
Black diamonds are also called carbonado.
Black diamonds are black.
adámas this is a greek word
Yes, ice is a term sometimes used to describe diamonds.
You can buy black diamonds.
Black diamonds are diamonds, but they are black, and not transparent. Follow the link, below, to see photos of black diamonds.
Mother earth makes black diamonds.
Diamonds can be found naturally occuring in a range of colors, including black diamonds. They are not artificially made.
Black diamonds that are available in the market are usually low grade white diamonds that have been colored black, however, natural black diamonds can be expensive depending on the quality.
Lethbridge Black Diamonds was created in 1992.
Black diamonds are more rare than regular diamonds. They are one of the most rare species of colored diamonds.
Black diamonds -- properly Carbonado, are real diamonds, with our without enhancements. You can read more about Carbonado, below.