10x5-15x10mm Colorless and Indicolite Tourmaline plain tube 37 beads Indicolite Tourmaline Plain Tubes exhibit a vitreous luster with beautiful brilliance. The Indicolite Tourmaline bead bodies have excellent polish, feel smooth to the touch. The gem strand has been expertly matched for color and quality showing bi-color Indicolite blue and Colorless Tourmaline gems. These Tourmaline beads show as deeply saturated and well crafted group of exceptional Tourmaline beads. AAA Graded World Class Color and Group of Indicolite Tourmaline beads!