Early 20th century diamond and onyx bow brooch by Cartier, London c.1920, of double loop design with central line of graduated old brilliant cut diamonds,
rose cut diamond points between, onyx and diamond chevron zig-zag edges, the central tie formed of old cut diamonds flanked by calibre buff top onyx lines, mounted in platinum with white gold fitting, signed 'CARTIER' and 'LONDRES', together with a Cartier case, approximately 5.60cts of diamonds in all, accompanied by IAJA Expertise report no. XP1958-111224 signed by Olivier Bachet & Bernhard Berger declaring that in their opinion this is a 'genuine Cartier item' from Cartier London Length 6.5cm / 2 5/8''
Width 1.7cm / 5/8'' Weight: 16g
Late 19th century / early 20th century 'Noeud Louis XVI' diamond openwork ribbon bow brooch by Cartier, Paris c.1902, the loops and ribbon ends centred by alternating single stone and quatrefoil clusters,
Early 20th century diamond and onyx bow brooch by Cartier, London c.1920, of double loop design with central line of graduated old brilliant cut diamonds,