Lot 688 , A sapphire and diamond brooch, early 20th century and later

A sapphire and diamond brooch, early 20th century and later, centring on a cushion-shaped sapphire measuring approximately 10.2 x 9.1 x 6.7mm and weighing approximately 6.40 carats, within a border of single-cut diamonds, and later outer frame of brilliant-cut diamonds totalling approximately 1.70 carats, mounted in platinum, length 3.6cm

Accompanied by report no.27242 from the Gem & Pearl laboratory, dated 28th June 2026, stating that the sapphire is of Sri Lankan (Ceylon) origin, with no indications of heat treatment
£2,000-3,000