It s influences may be harmonized by the blue sapphire. shani is furthest from the sun. shani or saturn in the human physiology is expressed through the activities of the putamen. The putamen, like shani in the solar system, is placed at the outer edge of the basal ganglia. It s influence, like shani, is that of a servant. To be consider auspicious, the stone should reflect a pure color, be homogenous and soft to touch. This is a very strong gem and its use can be adverse sometimes. It s wearing purifies the mind. The mind is charged with virtuous thoughts and positive attitude,  blue sapphire is worn to protect one from evil ct of saturn.