Mens Cushion Cut Onyx Knight Ring Sterling Silver Sizes 8 To 13 Natural Black Onyx, 15x12mm Cushion Cut 8 pieces Machine Cut Sparkling Cubic Zirconia Accent Ring is in 925 Sterling Silver and weighs 11.50 Grams Perfect Gift for Fathers Day, Graduation, Birthdays, Weddings, Anniversary Includes Gift Box & 30 Day Return Policy