Black tourmaline jewelry is additionally sold as birthstone adornments since it is one of the October birthstones. Another birthstone for the long stretch of October is, in all honesty, Opal! Likewise, dark tourmaline is the conventional eighth wedding commemoration gemstone, so don’t avoid giving your cherished one a dark tourmaline ring, dark tourmaline pendant, or dark tourmaline wristband on your eighth wedding commemoration.