Due to the popularity of this item, please be sure to comment before purchasing. Blue Pietersite is formed when Hawk's Eye breaks down and melts due to crustal movements and magma activity, and then quartz from crystal flows in and recrystallizes. The only place it is found is Namibia, making it an extremely rare natural stone. Inner Diameter: 56.4mm Width: 16.6mm Thickness: 9mm #NaturalStone #PowerStone #Necklace #Ring #Earrings