Everyone who went to school is aware of the word SPECTRUM. When white light passes through a prism, the emergent beam is composed of seven (7) different colors, commonly known as the acronym VIBGYOR i.e., Red, Orange, Yellow, Green, Blue, Indigo, and Violet in the reverse order. The same effect is observed in a rainbow. It is believed that our body contains these seven colors in different proportions. If the colors are balanced, the owner is lucky – healthy and wealthy. Any deficiency or excess of one or more rays causes mental or physical (or a combination) problems. The principal gems represent or signify planets and luminaries (sun and moon). The astrologer examines the horoscope and determines which planet (or planets) is antagonistic to the native and prescribes the birthstone to be worn with details of what to wear, when to wear and how to wear.

Ruby, Pearl, Coral, Emerald, Topaz, Sapphire, Diamond, Agate, and Cat’s eye respectively refer to Sun,Moon,Mars,Mercury, Jupiter,Saturn,Venus,Caput (Rahu),and Cauda (Ketu). AGATE is said to be good for the heart, Amethyst cures sterility, Beryl enhances love and affection, Coral protects from epidemics, metorrhagia etc., Diamond cures plague, insomnia, charms, ensures safe delivery , Emerald is said to be good for the brain, increases memory power, ensures chastity, cures dropsy, epilepsy, hysteria, dysentery , Pearl is recommended for chastity, Ruby protects one from poison, plague, banishes melancholy, Sapphire assures good fortune, peace, comfort while Topaz denotes sympathy, re-possession of lost things.