Since time immemorial the gemstone of Saturn - Blue Sapphire has enchanted mankind. The stories and myths associated with this gemstone are legendary. It is true that this gemstone can do more harm than good if not worn according to proper astrological laws. This gemstone will show its positive or negative effect within 3 seconds, 3 minutes, 3 hours or 3 days. It is recommended that individuals who desire to wear the Blue Sapphire should go for a trial of minimum 72 hours to gauge whether the gem suits them or not.