This is a 4 carat Pear shaped Premium Blue Topaz, with a halo of Genuine Cambodian White Zircon gemstones (NOT zirconia), set in solid Sterling Silver. This ring is Magnificent ... The Blue Topaz is the highest quality from Brazil. The Cambodian Zircon gemstones are as brilliant as a D flawless Diamond. The color and design is absolutely Gorgeous! High quality piece Sizes 6 and 7 available New