Sterling Silver Adjustable Carnelian Ring

Sterling silver adjustable ring set with oval solitaire carnelian stone. Face of the ring is larger and measures 7/8ths of an inch length and approx 11/16ths of an inch wide. Ring is adjusted to smallest size at 7. I would not size up any more than to an 8. Some of the stamps are unreadable but ring is stamped 925 and acid tests positive for sterling silver. F