Beautiful, large yellow gold (750) and silver (925) brooch of oval, openwork, poly-lobed shape, set with old-cut and rose-cut diamonds in pearl and claw settings in fleurons, navettes and sunburst chatons, and punctuated with small faceted diamond-cut emeralds in closed settings, and a larger rectangular cut emerald in claw setting in the center. Gross weight: 28.7 g. - Size: 4.6 x 6.9 cm. Foreign work, late 19th century. Minor traces of restoration on the reverse, probably a brooch-mounted element with transformations.