To tell if Dumortierite jewelry is genuine, examine its color: deep blue, violet-blue, or greenish blue with natural variations, similar to Dumortierite raw stones. These colors resonate with the third eye chakra and throat chakra, enhancing mental clarity and life force. Perform a scratch test on glass, as authentic Dumortierite should be hard enough to leave a mark. Look for unique inclusions or patterns typical in genuine stones, including pale blue or navy blue variations, and consider purchasing from reputable sellers who provide certification. This gemstone is also valued for its healing properties, which make it great for the Dumortierite pendant.