The Okavango Blue Diamond, a dazzling 20.46-carat stone, is more than just a beautiful jewel-it's practically a miracle of nature. Unearthed from the Orapa mine in Botswana, this rare gem has ...

The 17.6 carat stone is described as the "largest internally flawless fancy vivid blue gem" to go up for auction. And a Rolex worn by Marlon Brando in Apocalypse Now sold for close to $5 million.

The Hope Diamond —the largest and arguably most famous of all the blue gems—is worth around $350 million. Even for researchers like Smith, who study precious jewels for a living, have a hard ...

The Blue Moon — so-called in reference to its rarity, playing off the expression "once in a blue moon" — topped the previous record of $46.2 million.

This photograph taken on Nov. 2, 2023 in Geneva shows the "Bleu Royal," a rare 17,61 carats internally flawless fancy vivid blue pear shaped diamond, which fetched nearly $44 million in a Christie ...

The Okavango Blue Diamond, center, is on display at the American Museum of Natural History in New York City, along with more than 1,000 other rough-cut diamonds from Botswana. D. Finnin/AMNH ...

The “Blue Moon of Josephine ” is a 12.03 carat blue diamond that sold for $48.4 million in 2015. It still holds the auction record for the price-per-carat of any diamond or gemstone, the press ...

Big Number $57.5 million. That’s how much the 16.63-carat Oppenheimer Blue, sold for at auction in 2016. It holds the record for the most expensive blue diamond.

Blue Diamond Growers, the world’s largest almond processor, reported $1.6 billion in annual income Wednesday, its second highest ever. The cooperative held its 112th annual meeting at Modesto ...