Diamond and synthetic sapphire brooch, circa 1910. A platinum topped yellow gold brooch set with seven round old cut diamonds in platinum millegrain collet settings with pierced surrounds along the central horizontal axis and graduated from centre, the centre stone flanked by six round old cut diamonds in bead settings also along the central axis, all thirteen with an approximate total weight of 1.10 carats, and with eight rose cut diamonds continuing down the axis with an approximate total weight of 0.20 carats, the central section set to top and bottom with thirty six D-shape old cut sapphires in platinum millegrain settings, all above a geometric pierced gallery, the reverse mounted with a hinged gold pin.
