These Azurite-Malachite 4x4mm cube beads are a combination of deep blue azurite and bright green malachite. Even though this is reassembled gemstone, the stock is made from a good grade of material and the individual bits of gemstone used are small, giving the beads a nice natural look. The individual cubes are uniform in size and shape. The beads are strung on 15.5 to 16 inch long strands and they are sold by the strand.