Any jewelry made with copper such as Sterling Silver and Rosé Gold items can tarnish slightly over time, however, for many people, this is outweighed by the beautiful properties of natural metals. This means the finish can potentially leave behind a surface mark on the skin when worn. This coloration easily washes off with warm water and a mild soap. If you do see a slight blackening in your piece it is nothing to be alarmed about and the ring can easily be brought right back to it's shining self with a jewelry polishing cloth. Any side effect caused by the natural properties found in our jewelry is temporary, unavoidable and not valid for a refund.