“A diamond is forever.” That iconic slogan, coined for a highly successful advertising campaign in the 1940s, sold the gemstones as a symbol of eternal commitment and unity. But our new research, ...

Diamonds seem to reach Earth's surface in massive volcanic eruptions when supercontinents break up, and they form when continents come together. When you purchase through links on our site, we may ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. The dramatic break up of an ancient supercontinent could be behind ...

Crater of Diamonds, which sits on the eroded top of a volcanic pipe, is the eighth largest diamond deposit in the world. It is one of only two active diamond mines in the United States and is the only ...

Ömer Bodur was supported by funding from the Australian Research Council and from De Beers. Nicolas Flament receives funding from the Australian Research Council and from De Beers. Most diamonds are ...

For more than a quarter-century, he's returned numerous times a year to this ancient volcanic crater snuggled in the vine-draped hills of southwest Arkansas. Using a metal washing drum and a series of ...