The cuff is a smaller size measuring 5-1/8" on the inside not including the 1" opening. It can be slightly adjusted for fit. It's made of sterling silver in a Harvey era Navajo style. It is marked sterling and doesn't have the makers mark. The top is a good ,bold size measuring 1-1/2" in height. The gemstone is natural, cabochon cut leopard skin jasper. The cuff is solidly crafted and weighs 23-1/2 grams. It is pre-owned and in very good condition.