Telescope

The Telescope has appeared in "Laser Light Cannon", "The Return" and "Cry for Help".

"Laser Light Cannon"
Pearl and Garnet used the telescope to see the Red Eye.

"The Return"
Pearl and Garnet used the telescope to see Peridot's Gem Warship.

"Cry for Help"
Steven and Amethyst used the telescope to see who rebuild the Communication Hub.

Trivia

 * The telescope has a star, which is associated with the Crystal Gems, in its body.