An elegant emerald and diamond bracelet, by Boucheron. Photo Christie's Image Ltd 1998

Designed as three baguette, triangular and shield-shaped diamond openwork panels to the rectangular-cut emerald spacers, circa 1929, 18.5 cm., with French assay marks, in its original Boucheron blue leather case. Signed by Boucheron, Paris. Estimate: CHF44,000 - CHF50,000 ($32,023 - $36,390). Price Realized  CHF65,500 ($47,707)

A mother-of-pearl, diamond, enamel and onyx vanity case, by Boucheron. Photo Christie's Image Ltd 1998

The green enamel and onyx rectangular case applied with a mother-of-pearl plaque depicting a Chinese landscape with black enamel and diamond detail to the front and reverse, opening to reveal two compartments, a lipstick holder and a fitted mirror, circa 1928, 9.0 x 5.0 x 1.5 cm., with French assay marks (lipstick tube deficient). Signed by Boucheron, Paris. Estimate: CHF22,000 - CHF28,000 ($16,012 - $20,378). Price Realized  CHF52,900 ($38,501)

An agate, diamond and enamel case, by Boucheron. Photo Christie's Image Ltd 1998

Of rectangular outline, the two-toned agate and diamond-set box applied with a coral, carnelian and malachite bouquet of flowers in a single-cut diamond vase with multi-coloured enamel surround to the black enamel fleur-de-lis hinges and thumb-piece, circa 1925, 8.5 x 4.2 x 1.4 cm., with French assay marks, in its original Boucheron pink leather fitted case. By Boucheron. Estimate: CHF29,000 - CHF36,000 ($21,106 - $26,201). Price Realized  CHF36,800 ($26,783)

A diamond brooch, by Boucheron. Photo Christie's Image Ltd 1998

Bezel-set with a hexagonal-cut diamond in an old European and baguette-cut diamond geometrical swirl surround to the diamond tiered terminals, circa 1932 (accompanied by fittings to be worn as a necklet), with French assay mark, in its original Boucheron brown leather fitted case. Signed by Boucheron, Paris. Estimate: CHF29,000 - CHF36,000 ($21,106 - $26,201). Price Realized  CHF34,500 ($25,109)

Christie's . ART DECO JEWELLERY, 17 November 1998, Geneva