This product is a stunning 0.78 carat top cornflower blue sapphire from Ceylon, Sri Lanka with a cobalt color diffusion treatment. The gemstone has superior luster, transparent clarity, and is cut to a good grade. With a hardness of 9, this natural sapphire is of high quality and value. The oval shape and dimensions of 6.9mm in length, 5mm in width, and 2.4mm in depth make it a versatile and eye-catching gemstone for jewelry and gemstone collectors alike.
