Vintage Native American Sterling Black Onyx Mother of Pearl Inlay Statement Ring

This ring is from my collection purchased at a boutique in the late 80’s. It is definitely a statement piece. It is Native American - Sterling - Black Onyx with Mother of Pearl inlays. Two of the MOP are a brownish eggplant color depending on how the light hits them. The other two are the traditional MOP colors. It is a size 8 and in great condition.