YELLOW GOLD, DIAMOND, PEARL AND BLACK ENAMEL SHAPED OVAL BROOCH.mid 19th century. Row of three cultured pearls raised and surrounded by 16 round diamonds together weighing app. 1.75 ct. in domed openwork setting with black enamel accents; engraved on reverse and dated 1866 - L: 1 3/8 in. Estimate $1,200-1,800