High-quality natural Sky Blue Topaz round concave-cut gemstones calibrated to 13x13 mm (approx. 9.00 to 9.70 cts per stone). Sourced from top-grade white topaz rough originating from Brazil, Africa, and India, then precision-cut in our own factory by skilled artisans, these gems feature a bright sky blue hue, unique 3D concave faceting for extraordinary fire and brilliance, and high surface polish. Ideal for solitaire rings, pendant centers, drop earrings, and custom fine fashion jewelry designs. Wholesale bulk quantities and custom orders available upon request.