Handmade Royston Ribbon Turquoise and Sterling Silver Ring. Size 9. Etsy Genuine Royston Ribbon Turquoise Pendant, Navajo Native American USA Handmade Royston Ribbon Turquoise and Sterling Silver Ring. Size 9. Etsy Sold at Auction: Vintage Navajo Silver & Turquoise Snake Ring SZ: 7.5 Genuine Royston Ribbon Turquoise Pendant, Navajo Native American USA Handmade Royston Ribbon Turquoise and Sterling Silver Ring. Size 9. Etsy