of pierced and openwork design centred by a marquise shaped stone, collet and claw set throughout with old cut cushion and round brilliants, baguette and square cut diamonds, mounted in platinum and with 18ct white gold fittings, approximately 20cts of diamonds Length 7.8cm / 3 1/8''
Width 3.2cm / 1�'' Weight: 37g
Early 20th century emerald and diamond panel brooch, English c.1915, probably by London & Ryder, of garland style, the openwork hexagonal panel centred by a trio of oval cabochon emeralds,
Art Deco sapphire and diamond bow brooch by Mauboussin, Paris, the openwork centre of buckle design featuring an oblong cushion cut sapphire of approximately 1.25ct,
Early 20th century yellow sapphire, sapphire and diamond cluster brooch, c.1910, centred by an 11.90ct Ceylon yellow sapphire of old square cushion cut and lemony-yellow hue,