Centerstone: Created Black Opal, Cushion Cut, 15x12 mm, Iridescent Black Hue. Side Stones: 8 pieces Super Sparkling Machine Cut White Cubic Zirconia. Ring: 10.50 grams, Pure Sterling Silver with .925 stamp, Ring features exceptional Design, Craftsmanship and Beautiful Rhodium finishing. Perfect gift for Fathers Day, Birthdays, Valentines Day, Graduation, Christmas or just about any other occasion. Available in sizes 8 to 13. Includes a Signature Gift Box, style SR11566