Blue sapphire is a compound of aluminum and oxygen. Due to slight mixture with cobalt it becomes blue.
Blue Sapphire/Neelam in combination with other stones helps cure and fight bone cancer, kidney trouble, nerve disease and paralysis. Blue Sapphire/Neelam will bring the wearer wealth, fame, good name, health, happiness, prosperity, long life, mental peace, and good children. Wearing Blue Sapphire protects against danger, travel problems, terror, thieves, accidents and problems from storms, fire, or natural disasters. It can cause financial fortunes to change for the better, help with a person's career, and make the wearer rich. It can free one from mental anxiety
It helps make one detached, and protects against envy. It can be worn for good luck and for protection against evil spirits. Saturn rules the nervous system. Blue Sapphire is of help in nervous tension and neuroses-diseases caused by an afflicted Saturn. Because Saturn is the slowest moving planet, it tends to cause chronic disease.