20.00-23.00 Cts of AAA 20x15 mm Oval Checkered Board Loose Swiss Blue topaz (1 pc) Gemstone The loose oval checkered board-cut Swiss Blue Topaz is the finest AAA quality bright blue colored gem measuring 20x15 mm. AAA quality Topaz are Loop clean gemstones, with no visible nicks, or inclusions. The color is even and consistent. Blue topaz is created by treating a natural colorless topaz. 30 Day No questions asked Return Policy Free-Shipping within US Loose Swiss Blue Topaz