Iolite is a substitute of Blue Sapphire. In Hindi, it is called Kaka Nili. It is found in various colors ranging from blue to purple. It is of blue, dark blue, purple, violet and purple color with a hue of blue color.
Amethyst is called Jamunia in Hindi. At many places it is known as Billor. It is worn as substitute of Blue Sapphire. This substitute is found in abundance in nature. It is colorless. The Amethyst with dark color in the