A pair of diamonds that formed hundreds of kilometers deep in Earth’s malleable mantle both contain specks of materials that form in completely opposing chemical environments—a combination so unusual ...

Provided you have ever been amazed by the shine of a diamond, then there must have been a moment when you questioned how it entered your jewelry box instead of remaining under the Earth’s surface.

Scientists have discovered ancient diamonds which have provided new clues about the Earth’s evolution. Researchers discovered ancient superdeep diamonds, which hail from mines in Brazil and Western ...

Jeweler Harry Winston donated the famous Hope Diamond—the largest-known deep blue diamond in the world—to the Smithsonian Institution in 1958. It arrived in a plain brown package by registered mail, ...

Deep below the surface of our world, far beyond our feeble reach, enigmatic processes grind and roil. Every now and then, the Earth disgorges clues to their nature: tiny chthonic diamonds encasing ...

As it turns out, diamonds in the Earth are much more common than we thought. About 1,000 times more common, according to the Massachusetts Institute of Technology. A new study by an interdisciplinary ...

Scroll down to begin the experience. Botswana’s Jwaneng Mine sits on the edge of the Kalahari Desert, a vast expanse spanning much of southern Africa, its arid plains peppered with acacia trees and ...

This cartoon shows a subducting oceanic plate traveling like a conveyor belt from the surface down to the lower mantle. The white arrows show the comparatively well-established shallow recycling ...