Leibish & Co., unveiled its World of Colors guide for identifying fancy colored diamonds in New York Thursday (January 19). A day earlier, I spoke privately with Leibish Polnauer, the president and ...

While some diamonds whisper elegance, fancy color diamonds shout it—and their growing market value reflects that. Prices for fancy color diamonds have surged 205 percent over the past two decades, ...

The Golden Globes red carpet was undeniably a diamond night, with natural diamonds taking center stage across jewelry ...

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 ...

Sotheby's has just announced that at $460.5 million, its worldwide jewelry sales in 2012 were the highest ever for the company, beating its previous global sales record $404.6 million set in 2010.

A Sotheby's employee displays the rare Blue Moon Diamond during a preview at Sotheby's in Geneva, Switzerland, on Nov. 4. AP GENEVA — A large blue diamond, one of the world’s rarest, could fetch $35 ...