RN0020-GW-18 white gold two gemstone ring with sky blue topaz and diamond. The 4mm round gems have an approximate weight of 0.24 carats and a metal weight of 6 to 8 grams. Read complete details for this gorgeous ring at http://www.jewelat.com/shop/rings/755-RN0020-GW-18-ring-white-gold-sky-blue-topaz.html