The Gem Stone of Moon
In the Navagraha system of Plantary gemology Pearl is the Gem stone that is used to enhance the power of moon. The planet Moon is by nature Saumya (Gentle) and represents the manahsthiti (mind) of the kalpurusha. An individual who has the moon well placed in his birth chart will be a balanced individual. Among all the nine planets, moon is the fast moving. Consequently effect of changing position of the moon are felt by human beings and all the creatures of nature at short intervals.