Mens Rectangle Onyx Centurion Ring Sterling Silver Sizes 8 To 13 Natural Black Onyx, 10x8mm Rectangle Shape 26 pieces Machine Cut Sparkling Cubic Zirconia Accent Ring is in 925 Sterling Silver and weighs 12.50 Grams Perfect Gift for Fathers Day, Graduation, Birthdays, Weddings, Anniversary Includes Gift Box & 30 Day Return Policy