A collection of three antique brooches, the first, an early 20th century oval yellowish brown zircon and diamond set openwork brooch, the central oval stone set within four old-cut diamonds to the cardinal points, the second, an enamelled panel brooch, circa 1830s, decorated with spray of pink roses, and the third, a 19th century micro-mosaic brooch (damaged), first brooch length 18.5mm. £260-300