The Nine Gems, Nine Planets & Vedic Zodiac

GEMSTONES	RULING PLANET	ZODIAC MOON SIGN
Ruby, red spinel & red garnet	Sun (Surya)	Leo
Natural Pearl, moonstone & white coral	Moon (Chandra)	Cancer
Red Coral, red carnelian & red blood stone	Mars (Mangala)	Aries / Scorpio
Emerald, tsavorite & green tourmaline	Mercury (Budha)	Gemini / Virgo
Yellow Sapphire, yellow topaz & tourmaline	Jupiter (Brihaspati)	Sagittarius / Pisces
Diamond, white sapphire & colorless quartz	Venus (Shukra)	Taurus / Libra
Blue Sapphire, iolite & indicolite	Saturn (Shani)	Capricorn / Aquarius
Hessonite, hyacinth & spessertite	Rahu (Moon's N Node)	Not applicable*
Cat's Eye Chrysoberyl, tourmaline & fibrolite	Ketu  (Moon's S Node	Not applicable*

* According to the ancient science of Asian "Sidereal" Astrology, Rahu and Ketu do not rule any of the 12 zodiac signs. Being aprakasha or "shadow planets," they reflect the qualities of the lord of the sign they occupy. Example: If Rahu is located in Virgo, a sign ruled by Mercury, you should look to the position of Mercury in the chart and predict similar results for Rahu.