There are dozens more diamond shapes than the ten most common, yet some of these are virtually unknown outside the industry. Many of these are patented and kept exclusive by their owners. For example, a Jupiter cut has five sides, a Hexagon or Half Dutch Rose cut has six, the Queen and the Baroness cut have eight sides, and the bead cut looks (seriously) like a disco ball. The Tulip, Bullet, Boat Shaped Rose, Genesistar, and Fan are all unusual shapes that are not often seen. The Diamond Guide HQ has illustrations of a hundred different shapes and cuts like these.