8mm Lapis Lazuli Gemstone Round Beads Approx 40cm 15" Loose Strand Semi Precious Stone 8mm Lapis Lazuli Gemstone Round Beads Approx 40cm 15" Loose Strand Semi Precious Stone 8mm round beads 15" loose Strand Mohs hardness 6-6 1/2 Deep Blue may be inhansed with dye to deepen color