RN0020-GW-05 white gold two gemstone ring with blue sapphire and ruby. The 4mm round gems have an approximate weight of 0.5 carats and a metal weight of 6 to 8 grams. Read complete details for this gorgeous ring at http://www.jewelat.com/shop/rings/703-RN0020-GW-05-ring-white-gold-blue-sapphire.html