The origin of Diamonds

9 November 2018 /

Blue emerald cut diamond from heart in diamond

Where Do Diamonds Come From?

India was the only source of diamonds for many years. In 1725 enormous deposits were found in Brazil, and in the nineteenth century some of the largest and most valuable deposits in the world were discovered in South Africa. Today, however, many people think that all diamonds come from South Africa. While half of all diamonds do come from Central and Southern Africa, significant deposits have been exploited in Russia, Canada, Brazil, India, and Australia. Geologically, diamonds are most often found in areas where “volcanic pipes” have brought them up from deep under the earth’s surface.

Diamonds generally form under two specific conditions:

  1. Site of meteor strike – Volcanic pipes bring diamonds up from underneath the earth’s surface
  2. The Earth’s crust – In the lithospheric mantle below relatively stable continental plates

Where are Diamonds Located?

In the nineteenth century, some of the largest and most valuable deposits in the world were discovered in South Africa. While half of all diamonds do come from Central and Southern Africa, significant deposits have been discovered in Russia, Canada, Brazil, India, and Australia.

Diamonds come to the surface from the mantle with rocks when there are deep volcanic eruptions. Then, it is discovered and shaped into a magnificent diamond. Learn more facts about diamonds here.

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