จาก barrons.com เปิดเผยว่า The diamond Serpenti necklace is one of about 320 jewels being offered by Sotheby’s in the Magnificent Jewels and Fine Jewels sales running back to back. The exceedingly rare piece, which has not been seen in the market or documented in Cartier books, is estimated at US$250,000 to US$350,000.