Sterling Silver London Blue Topaz and Sapphire Filigree Ring - Art Deco Style - This filigree ring features a large 3/4 carat center mounted London Blue Topaz Gemstone surrounded by four dazzling White Topaz gemstones flanked by two Baguette cut Genuine Sapphire gemstones. Please see all of our filigree rings. Sapphires are the birthstone for September and the fifteenth anniversary stone. This ring would make a perfect gift for many occasions. This ring is new and a quality sterling silver antique and collectible reproduction.