4 avril 2015
An emerald and diamond brooch and an emerald and diamond dress ring, circa 1965
A 12.55 carats Colombian emerald and diamond brooch, circa 1965. Estimate £120,000 - 180,000 (€160,000 - 250,000 ). Photo: Bonhams. The octagonal step-cut emerald, weighing 12.55 carats, in a four double-claw setting within a baguette-cut diamond spray...