The place where the world's largest diamonds are formed

New research by American scientists shows that the world's largest and most valuable diamonds form in liquid metal pools deep beneath the Earth's mantle.

The research team led by Evan Smith at the American Gemstone Research Institute discovered pure carbon crystals forming large blocks of diamond in liquid metal pools beneath the Earth's mantle , according to published research. today in Science magazine.

The biggest and most beautiful diamonds are deep beneath the Earth's crust.(Artwork: Express).

Scientists studied 42 specimens left after cutting many of the world famous large diamonds such as Cullinan (3,106.75 carat) or Lesotho Promise (603 carats). They found that these diamonds sometimes contain very small metal particles inside, made up of a mixture of iron, nickel, carbon, sulfur, methane and hydrogen.

Diamonds are born in the mantle of the Earth and are pushed to the surface through volcanic magma eruptions. The grains inside the diamond can help geologists learn more about the conditions of pressure, temperature and chemical composition where they are born. Diamonds become a protective cover for mineral deposits, provide special mineral samples and reveal environmental conditions in kilometers away from the ground.

Most diamonds are located at a depth of about 145-241km below the ground, but Smith and colleagues' research shows that super-large diamonds are concentrated at depths of 410-660km.