Blue Sapphire is the gemstone of Saturn as per Vedic Astrology. Saturn is a karmic planet and Saturn periods will make or break an individual’s life. The Sade Sathi/ Saturn cycle can be a defining phase in an individual’s life.Blue Sapphire recommendation should be made with caution. Due diligence should be taken to ensure that the Blue Sapphire is absolutely Jyotish Quality and free from any flaws as listed in the sacred texts. Wearing a Blue Sapphire that has flaws can lead to accidents, health problems and fall from grace.Saturn, a hard task master is either benefic or malefic. It is also controller of longevity. It is a secretive planet and is also known as planet of limitations, restrictions and of seperative nature. If good in one’s horoscope then the native will be careful, strong, profound, austere, laborious, and envious. Benefic Saturn will make native disciplined and he will have mental and moral courage, foresight and will have a high order thinker. One will have good intuitive power. A person having benefic Saturn will exercise prudence in expenditures against income. he will be reserved, precise, persistent, cautious, provident, industrious and responsible.Blue SapphireOn the other hand if Saturn is negative or malefic then one could be deceitful, melancholic, avarious, lazy, lethargic and skeptical. He will suffer obstacles, hindrance in his endeavors in all his endeavors. He will become diffident, distrustful, pessimistic, unreliable and could be patient of depression. He could have wicked friends too.