28. EMERALD AND DIAMOND BROOCH Oblong shape, set in the centre with an emerald cabochon in a surround of old-cut and 8/8-cut diamonds, on a yellow gold openwork setting, French import hallmarks for 14K gold (585°/00), size 4.60 x 3.00 cm, gross weight 15.54 g. EMERALD AND DIAMOND BROOCH Of oblong design, set to the centre with an emerald cabochon within a surround of old brilliant- and single-cut diamonds, to an openwork yellow gold mount, French import marks for 14 carat gold, measurements 4.60 x 3.00 cm, gross weight 15.54 grams.