Corals are one of the very few gemstones which are found in the water instead of the crust of the Earth. Technically, these are exoskeleton of a living being Polyp, which is excreted in the course of years and generations of these marine animals. The two varieties of Coral are being commercialized, namely, the Red and White Corals. The White Coral Stones have been used since ages for a number of purposes like decoration of weapons and protection against evil powers. These gemstones were used for deflecting pirates and the loch ness monster by the sailors.