The Shivalingam denotes the primeval energy of the Creator. It is believed that at the end of all creation, during the great deluge, all of the different aspects of God find a resting place in the Lingam; Brahma is absorbed into the right, Vishnu to the left and Gayatri into the heart.
A gemstone shivling is considered highly auspicious and is said to have one of the highest frequency vibration rate.