six graduated oval cut amethysts in old brilliant cut diamond borders, each spaced by a single brilliant cut diamond collet, the diamonds all cut-down collet set, the amethyst collet set, mounted in silver and gold Length 17.5cm / 6�''
Width at centre 1.8cm / �'' Weight: 32g
Art Deco diamond and sapphire oblong cluster ring, c.1920, set with an old lozenge cut diamond to a calibre cut sapphire ground and outer diamond border of old brilliant cut stones, diamond line shoulders extending up to the principal diamond, millegrain set, engraved anthemoin and laurel to half shank, lozenge pierced to gallery, serial number within the shank 3632
Late 18th century cushion cut diamond five petal flowerhead brooch, c.1790, centred by a principal slightly hexagonal old cut diamond in border of smaller cushion cuts,