Tanzanite Plain Rondelles measure approximately 5mm up to 9mm in diameter, gems have a glass like luster, exhibit excellent polish on symmetrical rondelle shapes, the widths are consistent throughout the strand, these pleochroic beads are a slight purplish tone on strand, and have a brilliant purplish medium Blue hue with slight internal features in this excellent group of Tanzanite beads. A Quality due to their make, larger than average size, and tonal matching on the strand.