Material: 18kt white gold. Center Stone Type: Rutilated Quartz. Center Stone Weight and Size: 22x16mm and ~30cttw. Diamond Pavé Weight: .43cttw. Ring Dimensions: 22x16mm overall head dimension and 14mm high from bottom of gallery to top of the stone. Size 8 1/2 which can be sized with meticulous care in our New York atelier. This cocktail ring is ideal for the middle or pointer finger.