within a box collet, raised on a shaped square cluster of round brilliant cut diamonds, tapering at the sides to the shoulders, with beaded and engraved leaf detail, the gallery with scroll detail, mounted in platinum, stamped 'IRID PLAT' within the shank Length up panel 1.2cm / �'' Weight: 5g
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,