Sterling silver can darken when it reacts with substances in the air, and the rate varies with humidity, storage, and what the jewelry encounters. Tarnish is a surface change, not necessarily a sign that a piece is damaged. Wearing silver regularly can help keep it bright, while storing it exposed in a damp room may encourage discoloration.
After wearing a silver ring or necklace, wipe it gently with a soft cloth to remove skin oils and residue. For ordinary tarnish, use a polishing cloth intended for silver and follow its directions. Take care around intentional darkened details, gemstones, and plated areas, since aggressive polishing can alter finishes. Avoid paper towels and rough fabrics that may leave scratches.
Keep silver dry and separate from other pieces in a pouch or closed jewelry box. If you store it for a longer period, a tarnish-resistant bag can be helpful. Remove jewelry before swimming, cleaning, or using products that may contain strong chemicals. For pieces with pearls, porous stones, or complex settings, ask a jeweler about cleaning before using any dip or solution. Gentle, consistent care is usually safer than infrequent intensive polishing.