Spiny Oyster is meticulously inlaid with beautiful turquoise to make this ring the stunning accessory to any wardrobe. It is a substantial piece of jewelry, weighing 5/8 oz, and measuring 1 1/4" wide and 1 1/4" long, and a profile of 3/8". Made by Rodney Coriz, Native American, this wonderful ring is adjustable! We have other colors, too! It is signed on the back, and completed with the makers mark.All Native American jewelry is accompanied by a Certificate of Authenticity.