Christie

An exceptionally rare blue diamond went under the hammer in Geneva on Nov. 7, selling for more than $40 million, making it one of the most expensive diamonds ever sold at auction, Christie's said.

Weighing 17.61 carats, the Bleu Royal is the largest internally flawless fancy vivid blue gem ever to appear for sale in auction history.

A Pablo Picasso masterpiece expected to fetch at least $120 million at auction went on show Sept. 25 in Dubai, kicking off a set of rare viewings outside the United States.

Christie's auction house will next week launch the sale of hundreds of jewels that belonged to Austrian billionaire Heidi Horten, whose German businessman husband made his fortune under the Nazis.

A cast of "The Thinker" by Auguste Rodin will be auctioned in Paris on June 30, expected to reach between 9 and 14 million euros ($10-$15 million), Christie's said on April 7.

One of the most iconic works of art in the world, it features a man resting his chin on his hand and was originally conceived as a representation of Italian author Dante.

A rare painting by German expressionist Franz Marc, which was returned last year from a museum to the descendants of a Jewish collector who fled the Nazi, is expected to set a new world record for the artist when it is offered for sale in an auction next month.

Rare portraits of Ottoman Sultans will be presented to collectors' interest on Oct. 28 in London.

The series, which consists of portraits of Orhan Gazi, Bayezid, Mehmed I, Selim I, Selim II and Şehzade (Prince) İsa Çelebi, is valued between 800,000 and 1.2 million British pounds.

A U.S. judge ruled on Sept. 7 that Turkey cannot recover a 6,000-year-old marble idol known as the "Guennol Stargazer" from Christie's and the hedge fund billionaire Michael Steinhardt.

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Handwritten notes that show one of history's greatest scientific minds in action are going up for auction in London.

Pages containing Isaac Newton's jotted revisions to his masterwork, the "Principia," are expected to sell next month for between 600,000 pounds and 900,000 pounds ($850,000 and $1.3 million), auctioneer Christie's said on June 1.

A jewelry set worn by French emperor Napoleon Bonaparte's adopted daughter sold for $1.65 million in Geneva on May 12, soaring way above the pre-auction estimate.

Marking the 200th anniversary of Napoleon's death, Christie's auction house sold the nine imperial jewels adorned with sapphires and diamonds, which were from the collection of his adopted daughter Stephanie de Beauharnais.

A rare 1623 book that brought together William Shakespeare's works for the first time will go up for auction in April, Christie's auction house announced on Jan. 10.