Blue Sapphire faceted rounds measure approximately 6.5mm up to 7mm varying in diameter, gems have a vitreous luster, beads show excellent faceting with some slight abrasion & external characteristics and show an opaque body. These Sapphire beads are symmetrical round shape with a 1mm drill hole. They have a medium to very dark Indigo hue with visible silk creating a lovely Sapphire strand.