Mysticdrop 1.15-1.65 Cts of AAA 6x4 mm Radiant Emerald Matching Loose London Blue Topaz (2 pcs set) Gemstones The loose pair of radiant emerald-cut London Blue Topaz has the finest AAA quality dark blue colored gems measuring 6x4 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 London Blue Topaz