High-quality natural Amethyst round-shaped concave-cut gemstones calibrated to 16x16 mm (approx. 12.00 to 13.00 cts per stone). Sourced from top-grade Brazilian rough and precision-cut in our own factory by skilled artisans, these gems feature a rich purple hue, clean clarity, specialized concave faceting for extraordinary fire, brilliance, and light movement, and fine surface polishing. Ideal for solitaire rings, pendant centers, drop earrings, and custom fine fashion jewelry designs. Wholesale bulk quantities and custom orders available upon request.