Our London blue topaz ring is perfect for an engagement ring for those that love topaz gemstones. Handmade in 925 sterling silver with a genuine London blue topaz gemstone adorned with tiny 2mm white topaz on each side for a little extra sparkle. Stones are 8x6mm in an oval faceted checkerboard cut mined in Brazil with an ocean blue sparkling color. Rings are available in sizes 6, 7, and 8. About Topaz: Topaz belongs to the aluminum silicate group of minerals. Topaz grows into large crystals and the value is determined by its color, not the carat weight. Blue topaz comes in shades of sky blue, Swiss blue, and London blue topaz. Sky blue topaz has the lightest blue color, then Swiss, and London blue is the darkest. Materials: London blue topaz gemstone 8x6mm oval faceted checkerboard cut approximately 1.4 carats each White topaz gemstones 2mm faceted round 925 sterling silver oval accent setting If you have any questions just click "message seller" on our homepage. Thank you for visiting our jewelry shop, Linda and Joe .