Pair of Art Deco Platinum Black Onyx Black Enamel Diamond and Carved Jade Pendant-Earrings France. Topped by 2 square-shaped sugarloaf cabochon black onyx joined by tapered black enamel loops and black enamel circles flanked by diamond-set bands suspending 2 fancy-shaped carved jade plaques with French assay marks circa 1920.
An Art Deco enamel and diamond brooch, European, 1920s. An openwork quatrefoil brooch with floral and foliate motifs set with old European- and rose-cut diamonds and decorated with green enamel, mounted in platinum and gold.
An Art Deco gold, diamond, aquamarine and ruby brooch. Centring a rectangular aquamarine framed by calibré rubies, surmounted by stylised geometric foliate and swag set with brilliant-cut diamonds, suspending a triangular pendant with foliate motif set with brilliant-cut diamonds.