Introducing the Ceylon Octavia Blue Sapphire, a 4.89 Carat / 5.37 Ratti natural Blue Sapphire (Neelam) admired for its octagon shape, vivid blue hue, and exceptional clarity. Measuring 12.69 × 6.83 × 4.64 mm, this gemstone is expertly cut to highlight its brilliance, depth, and natural beauty.