Hieght - 2.75 Inch approx
Width - 3 inch approx
A gemstone shivling is considered highly auspicious and is said to have one of the highest frequency vibration rate.
shivling is considered to be auspicious and praying and bowing down to shivling is considered to be bowing to Lord shiva directly.
It is believed that during "Ramayan Kaal": Lord Ram and Laxman sat on the sphatik rock. The most common use of the Shiva Lingam is for sacred bathing (abhishekam) and so the worship of a Shiva Lingam always includes an abhisheka usually of milk and water.