Lot 69 – A ruby, sapphire and diamond brooch, by Bulgari. Photo Bonhams

Realistically modelled as a cockerel, the main body set with a carved yellow sapphire, weighing 52.86 carats, the head and tail set with brilliant-cut diamonds, buff-top calibré-cut rubies and sapphires and a cabochon ruby eye, diamonds approximately 1.50 carats total, signed Bulgari, numbered, length 5.8cm, Bulgari case. Estimate:  $17,000 – 23,000

Bonhams. Fine Jewellery. London, New Bond Street. 18 Sep 2013 - www.bonhams.com