The mystical Dzi beads are implements of ancient Tibetan and other Asian cultures for several hundreds of thousands of years. Dzi beads are believed to hold magical properties bringing prosperity and protection to whomever wore these beads. They are also thought to hold medicinal properties, and so can be characterized by the "dig marks" left over the surface of the bead, where a small portion has been scraped away to be ingested. The Dzi bead has patterns of 9 white "heavenly eyes", considered one of the most sought after types of these beads.
This is a old bead but dating is undetermined.