Paintings by Edward Hopper and Willem de Kooning sold for nearly $92 million and $69 million respectively in New York on Tuesday, setting new world record auction prices for each artist, Christie's said.
An exceptionally rare pink diamond of nearly 19 carats fetched 50.3 million Swiss francs ($50 million, 44 million euros) at auction in Geneva Tuesday, Christie's said, setting a new per-carat record for a stone of its kind.
A wheelchair used by physicist Stephen Hawking has sold at auction for almost 300,000 pounds ($393,000), while a copy of his doctoral thesis fetched almost 585,000 pounds ($767,000), auctioneer Christie's said Thursday.
Memorabilia that belonged to the first man to set foot on the moon, Neil Armstrong, has fetched more than $7.4 million at auction.
A copy of Stephen Hawking's doctorate thesis signed in a shaky hand was unveiled Tuesday as the highlight of a new auction of the British physicist's personal items in London.
A 12-pound (5.5 kilogram) chunk of the moon that fell to the Earth as a lunar meteorite has been sold at auction for more than $600,000.
A bottle of Scotch dating back to 1926 is tipped to set a new record in New York on Saturday for most expensive bottle of alcohol sold at auction, valued at up to $1.2 million by Sotheby's.
The cries of the raucous pre-dawn tuna auction rang out for the first time at Tokyo's new fish market Thursday, just days after the world-famous Tsukiji site closed the door on its 83-year history.