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Nav Ratna or Nine Jewels

The nine planets, including Rahu & Ketu (the North and South nodes of Moon) each have a representative gemstone:

Element Gem Stone Indian Name Substitute
Sun Ruby Manik Brown Tourmaline
Moon Pearl Moti  
Mars Red Coral Moonga  
Mercury Emerald Panna Berly
Jupiter Yellow Sapphire Pukhraj Citrine
Venus Diamond Heera White Sapphire
Saturn Blue Sapphire Neelam Amethyst
Rahu Hessonite Gomedh Red Garnet
Ketu Cat's Eye Lahasunya  
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