with central ground of calibre cut sapphires, to a pierced and shaped brilliant cut diamond set line border, baguettes and square cut diamonds below and to top, mounted in platinum, signed 'Cartier London', serial number 5503, accompanied by IAJA Expertise report no. XP1676-160424 signed by Olivier Bachet & Bernhard Berger declaring that in their opinion this is a 'genuine Cartier item' by Cartier, London c.1930 Length 3.8cm / 1 7/16''
Width 1.6cm / 5/8'' Weight: 8.5g
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,
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,