Necklace-Brooch Paris Boucheron, Paris, 1883. Photo courtesy Sandra Cronan Ltd

An important peacock feather necklace by Boucheron with Royal Russian provenance. Set with a sapphire, emeralds and diamonds, the feather is detachable and may be worn as a brooch or hair ornament. Price on request

MASTERPIECE 2013 LONDON. 27 june-3 july. Sandra Cronan Ltd. 16 Albermarle Street Bartley Way London, W1S 4HW United Kingdom. T +44 20 74 91 48 51 - enquiries@sandracronan.com