Currently, there are about 2 billion 500 million carat natural diamond reserves, of which 650 million are Australia and 550 million carat in Zaire. According to the current level of exploitation of existing diamond reserves can only be mined for 25 years, but with the improvement of the level of prospecting technology, each year has found a new mining area. Canadian diamond deposits increased significantly in recent years.
Since the diamond mining, a total of about 350 tons of diamonds produced, that is, 1 billion 750 million carat. Now the world's annual exploitation of diamonds in the 90 million -1 billion carat, of which the gem grade accounted for 17%-20%. 20% gem grade diamond value is equivalent to 5 times the value of 80% industrial grade diamond.
All over the world are diamond output, there are more than and 30 countries have diamond resources, annual output of about 100 million carat. The top five countries are Australia, Zaire, Botswana, Russia and South Africa. Diamond production in these five countries accounted for about 90% of the world's diamond production. Other diamond producing countries of the Congo (DRC), Brazil, Guyana, Venezuela, Angola, Africa, Garner, Guinea, Ivory Coast, Liberia, Namibia, Sierra Leone, Tanzania, Zimbabwe, Indonesia, India, China, Canada etc..
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