This is a strand of Lapis Lazuli button heishi disc shape beads; 6mm size, medium; ~3mm thick; genuine Lapis Lazuli gemstone. very well cut and polished ; good dark blue colors; speckles of golden iron pyrite, color enhanced; you will buy a 15.5" strand about 120 beads. (Heishi is now a word word for this style of bead. It is a button or disc shape drilled the thin direction. The style of jewelry originated with the Pueblo Indians)