Rio Tinto said it has dug the last diamond at its Diavik mine in Canada’s Northwest Territories, marking the end of its decades-old diamonds business as the giant miner sharpens its focus on ...

Rio Tinto Group has dug its last diamond and will close its final mine for the precious gemstone, marking the end of a business that lasted more than half a century. The world’s second-biggest miner ...

Researchers made small, pure samples of the elusive mineral lonsdaleite – also known as hexagonal diamond — and tested its material properties to show it's harder than diamond. When you purchase ...

When so much of our days are filled with scrolling, streaming, listening and email-sending, it’s easy to forget that there are hobbies that don’t actually require a screen. The great thing about ...

After decades of chasing after a rare hexagonal diamond, a Chinese team says their iteration of the elusive material is the most important yet. Reading time 3 minutes In 1962, researchers hypothesized ...

To misquote a famous song, "Diamonds are industry's best friend." Cubic diamond is the hardest mineral on Earth and is used in everything from precision cutting tools to high-performance ...

Cindy Ware of Chester County realized a couple of months ago that the diamond from her ring, passed down through her late husband's family, was gone. "I still don't believe it. It's in my purse now ...

Diamonds are the ultimate status symbol, but are they really forever? For over five centuries, Antwerp's diamond district in Belgium has been the cornerstone of the global diamond trade, through which ...

The United States may feel like it’s on the brink of a civil war led by its own government, but one thing Americans seem to agree on in our nation’s bisesquicentennial year is the peaceful, easy ...

De Beers reportedly cut rough diamond prices in January, a rare retreat by the industry’s once-dominant broker as slumping demand, lab-grown stones and trade turmoil batter the global diamond market.

A Texas man unearthed an unexpected treasure during a family trip this winter — all thanks to his sons and his wife's Siri search. Arkansas State Parks recently shared news about the find, which was ...

It started as a winter break question from two kids—where could they mine for crystals?—and ended with a 2.09-carat diamond pulled from the dirt. The park is the only public diamond mine in the world ...