Beautifully Banded Sardonyx Skull Weight 1 pound 11 oz / 784 grams 4.3 inches x 2.32 inches x 3.02 tall **Gemstones and crystals are natural products of Earth. stones and crystals may have small blemishes, imperfections, raw materials, and natural cracks. Please review the measurements and view all the photos before making a purchase.** Sardonyx is said to be a staunch protector against all forms of evil. placing sardonyx stones in all corners of a home is said to create a grid against negative and toxic energies. Sardonyxs energy may also help to reduce irritability, increase relaxation, and improve sleep quality overall. The information contained in this section is metaphysical in nature. Crystals should not be used as a replacement for medical treatment.