The lot features a large sterling silver ring set with amazing red spiny oyster with a black onyx border from Navajo Native American Indian silversmith, R. Johnson. The piece shows a sterling silver .925 construction with large polished cabochon of red spiny oyster being bezel set surrounded by a whimsical border of oval polished cabochons points of black onyx. The split sterling silver band is hallmarked, “R. Johnson” from astounding artist Grace R. Johnson. The piece has a large size with nice weight with high craftsmanship. Overall the piece measures 2”x1 7/8” across the front with a band size of 9 US.