the cushion cut sapphire claw set portrait, within an undulating border of round brilliant cut diamonds graduating larger at each end, mounted in platinum, signed 'MELLERIO', serial number 2744B, Mellerio workshop mark and French platinum control mark Length of cluster 16mm
Width of cluster 13mm Weight: 6.5g
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,
Art Deco diamond and sapphire cluster ring, French c.1925, central rectangular cut diamond of approximately 1.00ct, between calibre sapphire and diamond dart shoulders,