Wearing of Gemstones is also a Science :
The sages of India invented the science of Gems. It is related to the planet & colours as well. The Planet are nine and the precious jewels (Stones) are also nine (Diamond, Emerald, Ruby, Yellow Sapphire, Cats Eye, Blue Sapphire, Pearl, Hessonite & Coral). A man gets the benefits of the colour rays through the jewels. Ayurveda pescribes the oxides & ashes of precious stones for curing different diseases. The human body is also affected by the touch & friction of the precious stones.