This dazzling Swiss blue topaz and diamond cocktail ring from the EFFY™ Collection is a bold and memorable accessory. Sterling silver 14.0 x 10.0mm emerald-cut natural Swiss blue topaz in a double talon-prong setting Diamonds line the slender shank 0.04 ct. t.w. of diamonds A family-owned New York-based business, EFFY™ has built a reputation for unrivalled quality and flawless craftsmanship, with a sense of individuality captured in every design.