VAN EXIM
VAN EXIM
[
Gujarat,
India ]
Gujarat, India
As per quantity required
As buyer requirement
1 / Year
L/C, D/P, Western Union
Specifications
Most natural diamonds are formed at high temperature and pressure at depths of 140 to 190 kilometers (87 to 118 mi) in the Earth's mantle. Carbon-containing minerals provide the carbon source, and the growth occurs over periods from 1 billion to 3.3 billion years (25% to 75% of the age of the Earth). Diamonds are brought close to the Earth's surface through deep volcanic eruptions by a magma, which cools into igneous rocks known as kimberlites and lamproites.
