I have had this ring for years and I don't remember where or whom I received it from. It has a "925" and "SU" in a circle. http://www.tiffhnebz.com/wp-content/uploads/2015/02/IMG_2223-e1423787431774.jpg http://www.tiffhnebz.com/wp-content/uploads/2015/02/IMG_2225-e1423787411639.j...