This is 10k Gold. This is a 2 carat black and white diamond ring set. They are purchased from Zales and the band was separate but also from zales. I put the picture of the black diamond tested by a diamond toaster that you can see. The size can be seen on the picture. It can be resized by any local jeweler. I don’t have any paperwork. I just have them sitting in my jewelry box. The ring alone is more than 1200$ a piece. For more information please message.