You are viewing a fine quality 18K yellow gold and Sterling silver enamel filigree brooch made in the 1920's. The brooch measures 1 1/2" long by 1 3/8" wide. The outside border is bright yellow enamel. Set in the center is a lovely light blue Topaz stone weighing one carat. There is a halo of old mine cut light blue Topaz stones around an 18K yellow dot halo. The brooch is marked: 925, Sterling, 18K. The brooch weighs 12.5 grams.