Oxidized Silver is true sterling silver that has undergone a chemical process that creates a patina or blackened look to the silver. This technique gives the silver an antiqued or even edgy look. Oxidized finishes have the longest life on pieces that come into minimal contact with their surroundings, such as earrings and necklaces. Rings and bracelets tend not to hold their color quite as long since they rub on things we touch more frequently. Blackened finishes applied to the recesses of a design hold their color best and develop a great contrast to the raised parts of the piece which polish up over time.