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, ...

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 ...

Each year, millions of visitors crowd around a display case in the Smithsonian Museum of Natural History in Washington, D.C., for a glimpse of one of the most legendary gemstones in the world: the ...

If variety is indeed the spice of life as some say, the upcoming Bonhams New York Fine Jewelry sale looks very hot. The April 24 auction includes fancy colored diamonds; signed pieces from Cartier, ...

The Winston Red Diamond, an exquisite 2.33 carat Fancy red diamond - one of the finest in the world. Photo by Robert Weldon, courtesy of Ronald Winston. The Smithsonian’s National Museum of Natural ...