Jewellery, Watches and Objects of Vertu to include the personal archive of Louis Osman, goldsmith and architect

An early 20th century diamond and synthetic ruby pendant, the pendant modelled as a ribbon swag with bow terminals, millegrain set throughout with graduated rose-cut diamonds and accented with calibré-cut synthetic rubies, around central old brilliant-cut diamond, suspending two articulated drops below, set with rose-cut diamonds, to old brilliant-cut diamond terminals, gold and silver mounts, to a later curb-link chain, pendant length 60mm. £600-800