Blue Sapphire Gemstone (Neelam Stone) is a highly precious crystal of the corundum mineral clan. It is widely used for fashion as well as astrological purposes. However, if you also planning to purchase this beautiful crystal, especially for astrological reasons, then make sure to buy an original stone certified by a noted gem lab like IGI. you can explore Navratan, the online Gem Bazar for the widest segment of IGI-certified blue sapphire gems. It is among the most trusted gem testing labs in the world. It will not just provide you with a certificate of authenticity but also with the assurance of stone regarding its color, clarity, origin, and treatment.