925 Sterling Silver CZ Red Heart Crystal Promise Engagement Band Ring The center stone is set in 3 double prong setting The top of the ring is 12mm wide and the band is 17mm wide.product weight:4.37g Hypoallergenic /Never Fade/Brand New Design/scratch proof It's an excellent gift for anniversaries, graduations, birthdays, or just as a surprise to remind that special someone how much you care. Health certification does not contain harmful elements of "nickel" Comes with a Gift Box, 30-Day Money Back Guarantee to ensure you a perfect shopping experience.