Sterling Silver and Cubic Zirconia Solitaire Promise Ring. You have found just the thing for that special someone in your life and even yourself. Simple elegance is the statement you are making with this piece. Band separates and gently envelopes the stone providing an effortless central focal point. Unpretentious and a timelessly elegant. * Stamped 925. * Width of band is 3mm. * Width of stone is 5mm.