Since ages, gemstones have always been associated with supernatural powers. A link with astrology has been formed leading to the formation of stones, each allocated to the signs of the zodiac, the sun, the moon and the planets .

According to Indian gemology, stones allocated to the nine Planets are :

Sun – Ruby – (Manikya)
Moon – Pearl (Moti)
Mars – Coral (Moonga)
Mercury – Emerald (Panna)
Jupiter – Golden or White Sapphire (Pukhraj)
Venus – Diamond (Heera)
Saturn – Blue Sapphire (Neelam)
Rahu(dragon's head)– Hessonite, Zircon, Cinnamon Stone.
Ketu (dragon's tail)- Chrysoberyl Cat’s eye (Sutramani- Vaidurya, Lahsunia)

According to western gemology, the stones of planets are as follows :

Sun – Chrysoberyl, Diamond
Moon – Moonstone, Pearl, Emerald
Mars – Red Garnet, Ruby
Mercury – Yellow Sapphire, Topaz
Jupiter – Amethyst, Lapiz Lazuli, Blue Sapphire.
Saturn – Aquamarine, Blue Spinel.
Venus – Orange Yellow Sapphire (Padparadschah) Yellow Red Zircon.

STONES OF THE ZODIAC

Aries – (21 March – 20 April) -Red Jasper, Red Cornelian
Taurus – (21 April – 20 May) -Orange Cornelian, Rose Quartz
Gemini - (21 May 20 June) -Citrine, Tigers eye
Cancer – (21 June – 20 July) -Green Aventurine, Chryoprase
Leo – (21 July – 22 Aug) -Rock Crystal, Golden Quartz
Virgo – (23 August – 22 September) -Yellow Agate, Yellow Citrine
Libra – (23 September – 22 October) -Orange Citrine, Smoky Quartz
Scorpio – (23 October – 22 November) -Blood Red Cornelian, Sard
Sagittarius – (22 November – 21 December) -Blue Quartz, Chalcedony
Capricorn – (22 December – 20 January) -Onyx, Quartz Cat’s Eye
Aquarius - (21 January – 18 February) -Hawk’s Eye, Turquoise
Pisces – (19 February – 20 March) -Amethyst, Amethyst Quartz