Watch auctions are divided into two categories: Patek Philippe and Rolex, which represent the bulk of the value; and everything else. Likewise, jewelry auctions fall into two camps: colored, large, or ...

Blue diamonds are considered the rarest and most desired on the market. A particularly big one sold for millions at Sotheby’s on Thursday, scraping just beneath the surface of its $26 million ...

Pink diamonds are already among the rarest gemstones on earth. Add to that a documented royal provenance, an 18th-century ...

The Australian high jeweler unveils the 'Jardin Collier'—a seven-year creation set with six exceptionally rare diamonds, ...

If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. Pink diamonds are some of the rarest gems you’ll find on the planet. In fact, these ...

CINCINNATI (CNN Newsource/WKRC) - An extremely rare blue diamond sold at an auction in Geneva on Tuesday. It sold for nearly $44 million, making it the most expensive diamond sold at auction this year ...

Pink diamonds are so incredibly rare that they can sell for many millions of dollars. Scientists believe the ultra-rare gems turn pink or red when tectonic plates collide with unusually strong forces, ...

Nowadays, the journey of an engagement ring purchase begins on a phone or laptop for many modern couples. This is mainly because there are now more online diamond retailers than ever before.

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“I myself am happy to pay higher and higher prices for rare stones, and so are my clients.†—Laurence Graff SITTING IN HIS CORNER office overlooking New York City’s West 47th St., Laurence Graff ...

A simulated form of carbon called BC8, or 'super-diamond', could be 30% tougher than normal diamonds, but synthesizing it on Earth won't be easy. When you purchase through links on our site, we may ...