An emerald and diamond scroll brooch by Boucheron

An emerald and diamond scroll brooch by Boucheron, c.1950's, centred with a cluster of circular-cut emeralds within a border of pear-shaped marquise and circular-cut diamonds, and a tapering scrolling line of graduated baguette-shaped diamonds in gold and platinum, signed to the clip 'Boucheron Paris', inventory number 18085, indistinct maker's lozenge, 4.9cm high

Accompanied by a copy of an insurance valuation from Boucheron dated 2013.