Lot 619 , A George III aquamarine and diamond jewel, late 18th/early 19th century

A George III aquamarine and diamond jewel, late 18th/early 19th century, centring on a cushion-shaped aquamarine in a foiled, closed-back setting, measuring approximately 15.7 x 14.4mm, depth 8.2mm including setting, within a border of rose-cut diamonds, one rose-cut diamond loose, mounted in silver and gold, overall length 2.5cm, gross weight approximately 7.8 grams, central aquamarine detached from diamond surround
£600-800