A rectangular diamond plaque ring

A rectangular diamond plaque ring, the ring set to the centre with two brilliant-cut diamonds weighing a total of 0.52 carats, millegrain rubover-set within an openwork rectangular plaque, set throughout with round brilliant-cut diamonds, with round brilliant-cut diamond-set split shoulders, all set in white gold to a yellow gold mount with D-section shank, hallmarked 18 carat, London 2011, bearing the Bentley&Skinner sponsormark, gross weight 4.2 grams

No. X23943V