The Mirror

"The Mirror" is a magical, Gem-powered item that first appears in "Mirror Gem". Steven is given the mirror by Pearl to learn about Gem history and later discovers that a Gem, Lapis Lazuli, is trapped within the mirror. It ceases to exist after Steven frees her.

Appearance
An ornate design of silver-blue metallic material comprises the backing and handle of the mirror; Lapis' cracked gemstone is affixed to the back. The mirror itself is a round piece of blue reflective glass with a faint contour of a gemstone etched on its surface.

"Mirror Gem"
Pearl gives the mirror to Steven so he can learn about the Gem's culture and history; it is able to show its viewer any event it was present for since its creation. Pearl tells Steven they found the item at the Galaxy Warp. As Steven and Lapis begin communicating, she tells him she was purposely imprisoned within the mirror. Steven releases her by removing the gemstone from the back, shattering the mirror. The Gem's potential prior connection with Lapis and the mirror is currently unknown.

Trivia

 * The eight-point star on the mirror may be a reference to the Khatim Suleiman (خاتم سليمان), meaning Solomon's Ring. Islamic legends state that King Solomon captured Djinn with an eight-point star ring, similar to how Lapis was trapped inside the mirror.