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 ...

Jewelry and gem collectors are focused on the upcoming Sotheby’s and Christie’s auctions in Geneva this week where several rare statement colored diamonds will be up for bid. The lead item no doubt is ...

Christie’s is proving that good things most definitely come in threes. The auction house has chosen an eye-popping trio of colored diamonds to lead its latest sales event. The Magnificent Jewels sale, ...

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 ...

Colored diamonds, which have natural pink, blue, yellow, and other brilliant hues, will continue to be closely sought-after by collectors and investors in 2019, according to Russian diamond group ...

Yellow, pink and blue diamonds are catching the eye of investors around the world, according to dealers and industry insiders. Yellow, pink and blue diamonds are catching the eye of investors around ...

White diamonds are still the stones of choice for engagement rings. But colored diamonds are catching up. Last month the Gemological Institute of America, one of the largest independent ...

Jeweler Harry Winston donated the famous Hope Diamond—the largest-known deep blue diamond in the world—to the Smithsonian Institution in 1958. It arrived in a plain brown package by registered mail, ...