This is a pair of sensational AA Square Step Cut Loose Swiss Blue Topaz of 3 mm. Total Gemstone Weight: 0.36-0.42 Carats. * AA gemstones are eye clean with no visible nicks and inclusions. The color is even and consistent. These gemstones are Amongst the best Quality Swiss Blue Topaz Gemstones. Color may vary from gemstone to gemstone very slightly.