This is a beautiful turquoise stone mounted in hand-etched sterling silver. The face of the ring (stone with mount) is about 0.75 in “diameter”., with the stone about 0.6 inches across . . . It’s not perfectly round. I’m not sure of the size, but it fits on my “pinkie” finger which measures 2.25 inches in circumference (ring is 0.75 inches in diameter. All sales final.