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,
collet set to a square diamond cluster panel, full tapering side panel shoulders set with calibre sapphires forming darts to a diamond ground, the diamonds all of circular single cut, openwork twin wire shank back, mounted in platinum, with a French control mark for import or item of unknown French origin Square cluster panel 12.5 x 12.5mm
Principal sapphire approximately 8.7 x 8.5 x 5.3mm Weight: 7.5g
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,