Origin and Age of Diamonds
They travel to the earth's surface in volcanic pipes

Diamonds were formed over 3,000,000,000 years ago at depths of over 93 miles deep into the earth's surface. It is there where the earth's tremendous pressure of up to 870,000 pounds per square inch and intense temperature of up to 1,300 degrees Celsius transform the carbon atoms into diamonds.

They travel to the earth's surface in volcanic pipes, dikes and sills. Most diamonds today are found in volcanic pipes, like the Sytikansek Pipe and the International Pipe, located in Sakha the Russia Federation, CIS. There is the Premier Mine in Cullinan South Africa and the Jagersfontine Mine, also found in South Africa this mine was closed in 1971 and the nearby Koffiefontein Mine was re-opened.

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