Swirled Green Stone Sterling best Ring

Beautiful abstract ring with a stunning swirly blue green Eilat stone. The setting is a trapezoid oval surrounding the bevel with three prongs coming up at one end of the ring. Marked 925 with an additional makers mark that I can't identify. The size is currently about a 6, although the ring is adjustable. The face of the ring is 1 1/4 inches long by just under 3/4 of an inch across at it's widest point. best