A Narwhal tusk with a Cites certificate in my name. Narwhals live in the Arctic Ocean and grow to about 18' (not including the tusk). The males grow an elongated tooth that spirals out clockwise to form a tusk reaching 9' in length. This ivory tusk has been attributed with the creation of the unicorn legends. The tusks have a small hollow that runs nearly the full length, the ivory has no grain or core like elephant, mammoth or walrus but looks more like sperm whale ivory with a pencil sized hollow. Narwhals have been a protected species since 1972. This tusk measures 194cm x 4cm diameter at the base.