Richard Begay Navajo Stoplight Ring with Turquoise and Spiny O.yster Size 8

Sterling silver stoplight ring hallmarked by Richard Begay, Navajo. It is stamp decorated and has a hand wrought and hammered shank with 5 splits on each side. Set with turquoise and spiny o.yster. Turquoise has pyrite inclusions. Size 8 Face of the ring is 1 5/8" long. Weight: 9.6 grams. Some tarnish.