A single stone diamond ring

A single stone diamond ring, the old cushion-cut diamond weighing 3.55 carats accompanied by GIA certificate number: 21501174798 stating the stone to be of I colour and VS1 clarity, 8 claw-set in white mount with diamond set leaf motif shoulders, hallmarked platinum London 2016, bearing the Bentley and Skinner sponsor mark, gross weight 5 grams.

No. 23215M