925 sterling silver diamond cut wrapped feather design ring with a gorgeous faceted solitaire round blue topaz stone. The stone set in the middle measures 3/16 inch wide by 3/16 inch tall. It is available in sizes 6, 7, and 8. Although frequently associated with golden yellow as well as blue, it can be found in a variety of colors, including colorless. Measuring 8 on the Mohs scale, topaz is a very hard and durable gemstone. It is one of the birthstones for November.