The value of a diamond depends on its cut, colour, carat weight and its clarity. A local jeweler can answer your question.
carbonado
Coal. Carbonado
Carbonado is also known as black diamond.
The stone carbonado is also known as black diamond.
The price will depend on the quality of the Carbonado that you want to purchase, including its carat weight.
The price will depend on the quality of the Carbonado that you want to purchase, including its carat weight.
Black diamonds are also called carbonado.
Carbonado, a form of opaque or dark-colored diamond used for drills.
Carbonado diamonds are simply more porous than other types of diamonds. They are found in geology different from other types of diamonds: there is no kimberlite or other 'diamond-indicator' mineral present. There are several theories about how carbonado diamonds are formed, which you can read, below.
Black diamonds -- carbonado -- are formed in ways that other diamonds are not formed. All diamonds are formed from carbon, but carbonado is more porous than other diamonds. The carbon isotope is low at -13 where most diamonds are rated as -12. Black diamonds are the 'toughest' form of diamond. Bottom line: we don't really know how carbonado is formed.
All diamonds regardless of colour, have an equal hardness. Note, however, that carbonado, or black diamond, is more porous than white diamond.
All diamonds are rated on the Mohs Scale of hardness at 10, the hardest rating, regardless of the colour. Black diamonds called carbonado, are, in fact, the 'toughest' of diamonds.According to its Wikipedia entry: "Carbonado...is an impure form of polycrystalline diamond consisting of diamond, graphite, and amorphous carbon..