A Christie's member of staff displays a diamond, coloured diamond and emerald tiger shoulder brooch by Rene Boivin during an auction preview in Geneva November 1, 2013. The item is expected to sell around CHF 180,000 to 240,000 (US$ 190,000 to 255,000) when it goes into auction November 12, 2013 in Geneva. REUTERS/Denis Balibouse (SWITZERLAND - Tags: ENTERTAINMENT SOCIETY)