Other Interesting facts:
Over half of all the world's diamond production and distribution is controlled by a cartel known as "De Beers." Although white diamonds unquestionably remain as the most notable gemstone in the jewelry industry, they are not in actuality "rare". Diamonds are mined on a massive scale, but the distribution by the cartel is controlled in a limited manner in order to keep the price of the diamond high. Because of the high cost and appeal of diamonds, many imitations are available on the market. The cubic Zirconia, Zircon, YAG, Moissanite, and Fabulie are commonly used as such imitations.
The diamond is a 10, according to the Moh's hardness scale, and is the hardest mineral on Earth. Major sources can be found in South Africa, Zaire, Russia, Canada, Nambia, Botswana, Australia, and Angola.
The more famous diamonds include the Dresden, Hope, Cullinan I (or Star of Africa), Cullinan IV, Nassak, Tiffany, Sancy, Florentine, and the Shah diamond.
Over 250 tons of rock is blasted for every finished diamond carat.