millegrain box collet set with an articulated line of 43 old brilliant-cut diamonds, to a concealed clasp, mounted in platinum and 18ct white gold, signed 'Cartier Paris', serial number 3090, French workshop mark for Henri Picq, French assaymark, approximately 6.60cts of diamonds in all, accompanied by IAJA Expertise report no. XP2396-260625 signed by Olivier Bachet declaring that in his opinion this is a genuine Cartier item from Cartier Paris, special order, 1911 Length 17.8cm / 7''
Width 0.4cm / 2�/16'' Weight: 19.5g
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,