Due to its rarity and unique, pure blue hue, which is not seen in any other gemstone, blue sapphire is a very valuable gemstone. Due to its connection with the Saturn (Shani) Planet in Indian Vedic astrology, the blue sapphire, known as neelam in Hindi, is the most renowned and potent astrological gemstone. The blue sapphire is thought to offer a person good fortune, wealth, and fame. The main sources of fine quality blue sapphires are Kashmir (India) and Ceylon (Sri Lanka). Colour, Transparency/Clarity, and Lustre are the three basic criteria used to assess the quality of blue sapphire. Depending on grade, natural blue sapphire price range from a few thousand to lakhs per carat.