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

A rose diamond set necklace, ring and earstud matched suite, the garland fringe necklace set throughout with graduated foiled back rose-cut diamonds, mounted in yellow precious metal, to a later fine curb-link back chain, together with a similarly set scrolled dress ring and a pair of cluster earrings on later screw back fittings, necklace length 39.5cm. £2000-3000