Vahan Sterling Silver & 14K Yellow Gold London Blue Topaz & Diamond Halo Cocktail RingMake an entrance with this showstopping Vahan Sterling Silver & 14K Yellow Gold London Blue Topaz & Diamond Halo Cocktail Ringa cocktail ring thats equal parts regal and radiant. At the center, an elongated faceted London Blue Topaz gemstone steals the spotlight with its deep, mesmerizing huelike twilight captured in stone. A halo of 0. 35 carats of round cut diamonds wraps around the gem in a sparkling embrace, enhancing every angle with light