Gemstone is the stone of Pinkish Red color, it generally occurs in crystal of six sided prism. Ruby is the Gemstone , used to enhance the powers of the Sun. An individual whose Sun is well placed in the birth Chart can never be unsuccessful. There are several attributes which decides the superiority of the ruby. For instance, if it is immersed in milk, the red rays should break the liquid. Or if it is rubbed on a stone, the stone may show signs of friction but the ruby must not lose weight.