A beautiful loose natural Ceylon blue sapphire like this one is a very scarce stone. This is because it has been cut in a square radiant design and it is unusual to see large sapphires cut in squares. Usually you see them as rounds or ovals however squares are not that common. It is a superb size and the colour is vivid and is in the royal cornflower blue spectrum. It is a very bright and lively gemstone, vivacious and full of life. This is a superb loose natural blue sapphire from Ceylon, exception in size, shape and colour.