I lost the diamond in my engagement ring and need to have it replaced. I went to a few different stores and they all gave me estimates within the same range but Kay does the work in-house instead of sending it out which I like and they also offer a lifetime guarantee so if anything happens to the diamond again, they will replace it. The ring belonged to my fiance's great grandmother so because of the wear, the whole head needs to be replaced and they need to re-coat the entire ring to make the metals match. It makes me nervous to have all this work done on such a beautiful antique ring. Has anyone had a ring repaired by Kay before? Good/bad experiences?