An opal and diamond brooch-pendant, circa 1905. Photo Bonhams The oval cabochon opal within a millegrain-set surround of single-cut diamonds, interspersed by three collet-set old brilliant-cut diamonds at each cardinal point, diamonds approximately 0.90...

A diamond Maltese cross brooch-pendant, circa 1820. Photo Bonhams The arms of the cross alternating with fleur-de-lys motifs, set throughout with cushion-shaped diamonds with pear-shaped diamond highlights, with a cushion-shaped diamond cluster to the...

A diamond brooch-pendant of starburst motif, set with old European and old mine-cut diamonds; estimated total diamond weight: 10.00 carats; mounted in silver topped gold; diameter: 3in. Sold for $6,600 Bonhams. Fine Jewelry, 16 Dec 2008. San Francisco,...

A diamond and pearl brooch-pendant of bow motif, set throughout with old-European and table-cut diamonds, suspending a natural drop-shaped pearl, measuring 13.96 x 10.46mm; estimated total diamond weight: 3.00 carats; mounted in platinum; length: 4 1/4in....