the 'saddle' and shank carved of a single piece of corallium rubrum and embellished with three ribs pave set with round brilliant cut diamonds, mounted in lined in platinum, French assaymark, signed 'Cartier Paris, crossed C's workshop mark for Cartier, accompanied by IAJA Expertise report no. XP1857-270824 signed by Olivier Bachet & Bernhard Berger declaring that in their opinion this is a 'genuine Cartier item' from Cartier Paris Length of head 2.5cm / 1''
Height of head 0.9cm / 5/16''
Width shank at back0.6cm / 3/16'' Weight: 11g
Art Deco diamond and sapphire oblong cluster ring, c.1920, set with an old lozenge cut diamond to a calibre cut sapphire ground and outer diamond border of old brilliant cut stones, diamond line shoulders extending up to the principal diamond, millegrain set, engraved anthemoin and laurel to half shank, lozenge pierced to gallery, serial number within the shank 3632
Art Deco single stone sapphire and diamond cluster ring, c.1925, the canted square sapphire of approximately 4.00ct, between calibre sapphire and diamond dart shoulders,