The ultimate blue sapphire in the world, Kashmir blue sapphires are prized for their captivating color and unmatched rarity. These stones, which are mined in the magnificent Kashmir region, have a striking cornflower blue color and are sometimes described as velvety or smooth because of tiny inclusions. This special quality disperses light throughout the stone, giving it a captivating depth and brilliance that is unmatched by other sapphires.