Smokey Quartz Crystals are some of the premier grounding and anchoring stones. These stones are strongly protective and are excellent stones for all of us to keep within our aura at all times. If you are a spiritual worker such as a clairvoyant, you may take advantage of this stones ability as a stone of psychic protection. It will both protect you from negativity and transmute the energy, by grounding it back down into the earth. If you are on a spiritual quest and have been working on any of your metaphysical or psychic abilities, it is possible you may have become ungrounded. This stone is purpose built to solve that problem, as it will bring you down to earth quickly.
Taken from - https://www.healing-crystals-for-you.com/smokey-quartz-crystals.html
Height of face of ring - 26mm Width of face of stone - 15mm