Yellow sapphire or pukhraj is a gemstone that is ruled by the planet jupiter. The color is about light yellow, is an expensive but safest stone considered. Mostly, it is worn for prosperity and leisure and is said to be good gemstone for those who are in business or industries. Wearing day: should be worn on thursday evening before sunset. Cautions: one should remove and get one if the gemstone get cracked or consult your astrologer. You should not wear dimond, blue sapphire, hessonite and emerald along with yellow sapphire / pukhraj, unless an learned astrologer suggest or recommend so.