While I realize that this is not a platinum diamond ring, I was very disappointed! I bought this ring as a substitute to my wedding rings until the swelling in my hands goes down due to my recent baby! I loved the ring when I received it...very shiny with a nice sparkle...looked very real. However, within one week the ring has tarnished and leaves that unattractive black/green circle on my finger. I bought sterling silver to avoid that and thought that I would get at least a month out of this ring. I have used silver polish and polish rags on the ring and it still looks dull and very fake. Too bad, it started out as a fabulous purchase!