A Regency multigem swivel seal

A Regency multigem swivel seal, the circular wheel seal set to either side with a circle of cabochon-cut turquoise, the centre lined with cushion-cut ruby, foiled beryl, garnet, amethyst and topaz, all millegrain rubover-set to an ornate pierced yellow gold mount, with gold filigree swivel handle, circa 1820, gross weight 11.2 grams

No. 21505M