The obelisk is a large, upright rectangular prism with pyramids floating off of both ends. The top pyramid appears to have four faces on its sides. Three of the faces are frowning while the fourth one seems to be smiling. The bottom pyramid is divided into two pieces and has a triangle pattern on it. The obelisk's body has an abstract pattern on it that resembles a humanoid. The hands are designed to look like they are holding a gemstone that is embedded in the "chest" of the obelisk.
The gemstone is a table cut with a white color and reflective surface.
The obelisk is found by the Crystal Gems, in a room filled with small spinning pyramids. They discover that the gemstone in the obelisk is powering the mechanism in the temple that trapped them in never-ending rooms. Steven is thrown by Garnet to the obelisk to remove the gemstone. However, he couldn't move it until the obelisk's smiling face turned towards him. The gem then glowed yellow and is removed from the obelisk, throwing Steven to the floor. The pyramids and the obelisk then retreated into the gemstone, and the temple exploded.