Emerald and diamond ring, Bulgari, 1960s

Centring on a cut-cornered step-cut emerald to shoulders set with pear-shaped diamonds, further highlighted with brilliant-cut stones, signed Bulgari, case by Bulgari, size M. Est. 55,000—75,000 GBP. Sold 67,250 GBP


Emerald and diamond brooch

Of flower head design, the stamens composed of circular-cut emeralds, the petals set with circular- and rose-cut diamonds, French assay and maker's marks, detachable brooch fitting. Est. 15,000—20,000 GBP. Sold 18,750 GBP


Emerald and diamond brooch/pendant, composite

Centring on a step-cut emerald flanked by circular-cut diamonds, suspending a detachable emerald drop with diamond set connection, later chain, brooch pin deficient. Est. 8,000—12,000 GBP. Sold 10,000 GBP


Emerald and diamond brooch, late 19th century

Centring on a carved emerald cameo depicting the profile of Zeus wearing a laurel wreath, within borders of circular- and rose-cut diamonds, later pin fitting, later fitted shagreen case. Est. 3,500—4,500 GBP. Sold 10,000 GBP


Gold, gem-set and diamond necklace/bracelet, mid 19th century

Designed as a snake composed of articulated links, the head set with mixed-cut emeralds, ruby eyes and circular-cut diamonds, inner circumference approximately 340mm, French maker's mark, can be worn as a necklace or a bracelet coiled around the wrist, accompanied by a fitted shagreen case. Est. 3,000—4,000 GBP. Sold 10,000 GBP


Emerald, paste and diamond demi-parure, 1950s

Comprising: a pair of earrings each designed as a stylised dahlia centring on a step-cut emerald, set with brilliant-cut and baguette diamonds, clip fittings; together with a brooch of similar design centring on a step-cut green paste. Est. 6,000—8,000 GBP. Sold 6,250 GBP


Emerald and diamond demi-parure

Comprising: a brooch/pendant of stylised acanthus leaf and floral design, set with step-cut emeralds, circular- and single-cut diamonds, together with a pair of earrings of similar design, post and butterfly fittings, fitted case. Est. 4,000—5,000 GBP. Sold 5,000 GBP


Gem-set, enamel and diamond brooch, early 20th century

Set with a cabochon emerald and rubies, decorated with yellow and black enamel highlighted with circular- and rose-cut diamonds, French assay and maker's marks. Est. 3,500—4,000 GBP. Sold 4,375 GBP

Sotheby's. Fine Jewels. 16 Jul 09 10:30 AM London  www.sothebys.com