我查了英文新闻。这条项链在香港索斯比拍卖时的确拍出2740万美元，而且的确是被卡地亚收藏了。
是福布斯的新闻，我觉得不会错。“A Cartier jadeite bead, ruby and diamond necklace owned by Woolworth heiress Barbara Hutton (1912 - 1979) sold for more than $27.4 million at Sotheby’s Hong Kong Magnificent Jewels and Jadeite Auction, held Monday. The sale set world auction records for a jadeite jewel and for a Cartier jewel, the auction house said.
It sold for more than double its estimate of $12.8 million.
The item, which Sotheby's called the "greatest jadeite bead necklace of historical importance," was purchased by The Cartier Collection after what was reported to be 18 minutes of bidding. “

https://www.forbes.com/sites/anthonydemarco/2014/04/07/hutton-mdivani-jadeite-necklace-sells-for-record-27-4-million/#...