Blue Sapphire faceted rounds measure approximately 6-6.5mm in diameter, gems have a vitreous luster, beads show excellent checkerboard faceting with some slight abrasion, gems show internal characteristics on an opaque body, these Sapphire beads are symmetrical round shapes, and the bead bodies are a medium to dark Indigo hue with visible silk creating a lovely Sapphire strand in a very workable round size.