Z& Z Jewelry & Stones FREE Piece of Jewelry. When you bring in this ad. Ask for more details. 1451 Collier Ave Suite b, Carnegie, PA 15106 412.489.6032 Z& Z Jewelry & Stones FREE Piece of Jewelry. When you bring in this ad. Ask for more details. 1451 Collier Ave Suite b, Carnegie, PA 15106 412.489.6032