Large, rare diamonds offer window into inner workings of Earth’s mantle

Breakthrough research examines diamonds of exceptional size and quality to uncover clues about Earth’s geology. The researchers studied the unique properties of diamonds with similar characteristics to famous stones such as the Cullinan, Constellation and Koh-i-Noor to advance our understanding of Earth’s deep mantle, hidden beneath tectonic plates and largely inaccessible for scientific observation.
Geology News — ScienceDaily