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 ...

Trump’s tariffs and shifting tastes reshaped the close of the 2025 auction season, as colored gems and signed jewels ...

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 ...

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 ...

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 ...

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 ...

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, ...