If you want to make this holiday season exceptional, jewelry is one gift idea that is always well-received. Luckily for you, ...

A competing theory is that black diamonds may have formed in outer space before falling to the Earth. Sotheby's is describing the sale as a "once-in-a-lifetime opportunity to acquire one of the ...

Big deals are mounting at outdoor gear retailers like REI, Backcountry, and even Amazon as Black Friday looms closer, but one ...

The 555.55 carat black diamond has belonged to its current owner for two decades but little is known about its history before that. A billion-year-old black diamond, believed to be the world's ...