The word DIAMOND has a thousand images: rare, precious, desirable, beautiful, sparkling tokens of love.They are to be the oldest known life on earth.It is the most tight bound crystalline configuration and it is said a diamond cuts the other diamond.This also know as a cutter because it is also used in cutting glass.Their formation requires  very specific conditions, involving the exposure of carbon-bearing materials to a high heat and enormous natural pressure.This type of layer is called as the mantle which is found deep inside the earth. more »