Four diamond brooches, late 19th century - early 20th century


1st: Set with three bouton-shaped pearls, with rose-cut diamonds to either side, mounted in platinum and gold, 2nd: The fan-shaped brooch converted from a 19th century jewel, with foliate motifs, set throughout with pearls and rose-cut diamonds, 3rd: The marquise-shaped centre pierced and set throughout with calibré-cut sapphires, rose-cut diamonds and a seed pearl, mounted in silver and gold, 4th: The surround set with a continuous row of rose-cut diamonds, the centre set with three replacement cultured pearls, mounted in silver and gold, 1st with French assay mark and maker's mark, 3rd with indistinct assay marks, 2nd with one replacement cultured pearl, pearls untested, lengths 4.9cm - 8.9cm (4)