For Anthony Tsang and Ray Cheng, cofounders of the Hong Kong-based jewelry marketplace The Future Rocks, lab-grown diamonds are the gemstones of tomorrow. It was exactly what they wanted to enshrine ...

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A giant diamond nicknamed "The Rock" went on display for the first time in Dubai on Friday ahead of an auction where it's expected to fetch up to $30 million. The 228.31-carat pear-shaped gem, which ...

The Crater is home to many other rocks and minerals, including jasper, sandstone, conglomerate, agate, quartz, amethyst, calcite, barite, mica, and (of course) diamonds, but the most prominent ...

The largest white diamond to ever come up for auction has been sold for 21,681,000 CHF ($21.9 million) at Christie’s in Geneva. The 228.31-carat, pear-shaped gemstone – dubbed “The Rock” – originated ...

The largest-ever white diamond is being sold at auction, but you'll need to open your wallet. Christie's, the art and luxury business renowned for its auctions, announced that an "exceptionally rare" ...