A gemstone (also called a gem, fine gem, jewel, precious stone, or semi-precious stone) is a piece of mineral crystal which, in cut and polished form, is used to make jewellery. It is known that planets affect our energy levels, and thereby, our lives. As per principles of Vedic astrology, gems, also known as precious stones, gemstones are associated with nine planets, namely Mercury, Venus, Mars, Mercury, Jupiter, Saturn, Rahu, Ketu and Moon. The therapeutic powers that the gemstones possess help balance the planetary effects and thus enable us to deal with problems on the physical, mental and spiritual plane in a better manner.
Since they absorb and radiate varied energy, gemstones have different effects on the human body. How the gemstones will affect a person depends upon the planetary transits and placements in his/ her birth chart. And therefore, it is necessary to use the gemstones correctly and as per the guidance of an expert astrologer otherwise they may generate reverse results.