Stunning 1.63 ct. t.w. London Blue Topaz centers this sterling silver ring that's accented by 1/2 ct. t.w. White Topaz. 1 London Blue Topaz, 25 Diamonds Color rating: H, I Polished finish Prong setting Imported Belk Exclusive Product Specifications 10 mm x 8 mm 1.63 ct. t.w. London Blue Topaz and 1/2 ct. t.w. White Topaz Material & Care Sterling silver Clean with a soft cloth