An early 20th century Sapphire and Diamond ringA charming early 20th century cluster ring, featuring a slightly oval cut sapphire measuring approximately 5 x 3mm(estimated 0. 25 carats) of a pleasing mid cornflower blue colour, set within a finely detailed millegrain platinum bezel. Surrounding the sapphire are ten old cut white diamonds, each approximately 2. 3mm (total estimated diamond weight 0. 40 carats), arranged in a classic daisy cluster setting. The ring head measures 10 x 8mm, with a