Jessica Wyndham, a trainee specialist in Sotheby's jewellery department, holds a ruby, diamond and emerald brooch by Cartier during a media viewing at Sotheby's in central London July 22, 2010. Sotheby's will auction, in November, 20 pieces from the Duchess of Windsor's collection which are estimated to fetch in the region of 3 million pounds (US$4.5 million). REUTERS/Andrew Winning (BRITAIN - Tags: SOCIETY BUSINESS ROYALS)