Sterling silver, 22K gold, 1.25ct natural gray/black diamond set in 22K gold. What an engagement ring this would make!!! This is a raw, untreated natural diamond that is all the rage right now. Complete with tiny wonderful imperfections on the surface that make this a unique ring. SIZE 8.25. PLEASE LOOK AT ALL THE VIEWS TO SEE THE SCALE. EXCHANGES ALLOWED WITHIN 10 DAY OF RECEIPT.