Center Stone Type: Turquoise and rose-cut quartz doublet. Center Stone Weight and Size: 15.25cttw and 17mm diameter. Diamond Pavé Weight: .06cttw. Ring Dimensions: 22mm overall diameter of head and 14mm overall height from bottom of gallery to top of stone. Material: 100% recycled, nickel free. Platinum-plated for tarnish resistance. Rhodium-plated to achieve a high luster finish.