Navajo Sterling Silver Multi-Stone Inlay Adjustable Ring Native American Jewelry Navajo multi-stone inlay ring made out of sterling silver, turquoise, coral, and spiny oyster shell. It was made by David Tune and is hallmarked inside the ring. Its size is adjustable and currently is at around size 9. The inlay portion measures around 1.5 inches long and 0.66 inches wide and the ring portion is adjustable and 0.41 inches high. Check out our other listings for more great Native American jewelry.