Now on display at the American Museum of Natural History in New York City, the diamond is turning heads and unlocking secrets about Earth's history. Nature's Fancy Masterpiece Categorized as ...

A new report from the Natural Diamond Council highlights the rarity and evergreen esteem of these vibrant gems.

Colored diamonds, particularly high-quality blues and pinks, have always commanded top dollar. But the recent action at the auctions and among high-end dealers indicates that — as often happens in ...

From rare purple diamond finds to record-breaking sales, Paris Couture Week opens with a groundbreaking report on the world’s ...

Despite its deep blue shade, the Hope Diamond emits a strong red color under short wave ultraviolet light, which will last for several seconds after exposure. Chip Clark, NMNH ...

A remarkable pink diamond, thought to have once belonged to Marie Antoinette, the last queen of France, has recently been ...

The “Bleu Royal” diamond set upon a ring went under the hammer for $43.8 million (CHF 39,505,000) at Christie’s auction in Geneva on Tuesday, the Associated Press, CBS News and Reuters reported.

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Prior to the sale of the Bleu Royal, only three fancy vivid blue diamonds of more than 10 carats had even been sold at Christie's in its over 250-year history, the auction house said, with the ...