Mix Natural Gemstones Round Shape Concave Cut Beads16 Pieces Mix Natural Gemstones Round Shape Concave Cut Beads, Concave Cut Pair, Concave Cut Beads, Concave Cut Round Shape Beads, 12x12mm Gemstone : Lemon Quartz, Smoky Quartz, Crystal, Amethyst, Rose Quartz, Green Amethyst, Bi Lemon Quartz, Lavender Quartz Shape : Round Shape Concave Cut Beads Dimension : 12x12mm No. of Pieces 16 in a Strand Drill Hole Size : 0. 60mm Drill Style : Face Drill For SIZE GUIDANCE : copy the URL and put in Address bar