For the first time, scientists have found Earth's fourth most abundant mineral—calcium silicate perovskite—at Earth's surface. "Nobody has ever managed to keep this mineral stable at the Earth's ...

Sound waves reveal a surprisingly large diamond cache deep in Earth's interior, researchers report. There may be more than a quadrillion tons of diamond hidden in the Earth's interior, according to a ...

Geologists have studied tiny pockets of fluids trapped inside diamonds to get a better understanding of how old humanity’s favorite rocks might be. In doing so, they identified three distinct periods ...

There’s plenty of mystique surrounding diamonds, and while much of it is manufactured (thanks, De Beers), some earn it. Researchers have now found evidence that some of the world’s most impressive ...

You can find high-quality, affordable engagement rings at a variety of retailers including Blue Nile, Brilliant Earth and Quince.

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Earth simply wouldn’t be the home planet we know and love ...

CAMBRIDGE, Mass. (CBS Local) - According to a new study, there may be a massive treasure hiding beneath the Earth's surface: a "quadrillion tons" of treasure. Researchers from the Massachusetts ...

The diamond provides "fundamental proof" of the long-theorized idea that slabs of oceanic crust that sink deep within the Earth are recycled into the lower mantle, researchers said. A study of the ...

The Cullinan mine, located on a diamond-bearing kimberlite pipe in the Gauteng province of South Africa, is the world’s richest source of rare blue diamonds and has produced more than a quarter of the ...

A beautiful blue flaw in a gem-quality diamond from Botswana is actually a tiny fragment of Earth’s deep interior—and it suggests our planet’s mantle contains oceans’ worth of water. The flaw, ...

There may be more than a quadrillion tons of diamond hidden in the Earth’s interior, according to a new study from MIT and other universities. But the new results are unlikely to set off a diamond ...