This 4.43 carat, no-heat Royal blue Ceylon Sapphire, is a remarkable gemstone, boasting both rarity and elegance. Blue Sapphires acquire different shades of blue ranging from light to dark. The more darker, the higher the value of the Sapphire. The term "vivid blue" describes a specific shade of blue that is deep, rich, and highly desirable in sapphires. In GRS terms, it also can be termed as "Royal blue", which is the highest grade of blue, that a Sapphire can possess.