A star sapphire and diamond ring

A star sapphire and diamond ring, the pale blue star sapphire weighing 17.70 carats four claw set between two stepped baguette-cut diamonds to each shoulder, the diamonds weighing a total of 0.77 carats, all set in platinum to an open scroll gallery and D-section shank, hallmarked London 2009, bearing the Bentley & Skinner sponsormark, gross weight 10.69 grams.

No. 23523V