Grown with the same physical, chemical, optical properties as natural.
Consistence in quality and color, not enhanced or color-treated.
More durable, same hardness.
Little to no inclusions!
Smaller carbon footprint.
Lab grown blue sapphire has the same chemical composition, crystal structure and optical and physical properties as the natural blue sapphire, gemology labs would identify both lab-grown and natural blue sapphires as forms of corundum.