Pietersite plain round beads exhibit a vitreous luster having chatoyancy throughout the strand of gems in a medium to dark denim blue hue with a silvery cat's eye phenomenon. The symmetrical round gems have good polish creating a dark shimmering quality to the opaque gems showing areas of their Tiger's Eye golden hues. A stunning example of rare South African Pietersite in a larger than average sized unfaceted round bead. AAA