Riviera: 8mm Cushion cut Simulated Swiss Blue Topaz & IOF CZ Halo Earrings 925 Silver, 0809 This pair of earrings features 8 x 8mm, 2.25 carats Square Cushion-cut Simulated Swiss Blue Topaz gemstones. Features a Halo setting with a colored solitaire stone shouldered by smaller, clear Russian Ice on Fire CZ accent stones. Overall width is 11mm or a little more than 2/5 inch. Made with solid 925 Sterling Silver