High-quality natural Sky Blue Topaz butterfly-shaped concave-cut gemstones calibrated to 10x12 mm (approx. 4.60 to 5.00 cts per stone). Sourced from top-grade natural topaz rough originating from Brazil, Africa, and India and treated via standard, stable irradiation to achieve a vibrant sky blue color, these gems are precision-cut in our own factory by skilled artisans. They feature specialized 3D concave faceting along the wings for intense light diffusion, extraordinary brilliance, clean clarity, and fine surface polishing. Ideal for statement solitaire rings, pendant centers, drop earrings, and custom fine fashion jewelry designs. Wholesale bulk quantities and custom orders available upon request.