Invisible Gem Monster

The "" is an antagonist that made its debut in "Island Adventure." Sadie destroyed its physical body, thus making it retreat to its gemstone as Steven bubbles it back to the temple.

"Island Adventure"
The Crystal Gems were searching for the monster at the beginning of "Island Adventure". When the monster attacked Lars, Sadie, and Steven, Steven summoned his bubble shield to protect them. Sadie subsequently defeated the monster by stabbing it with a spear multiple times.

Appearance
The Invisible Gem Monster's body is invisible, except for its gemstone. Its features become discernible when substances such as mud and water coat its exterior, revealing it to be bulky with a strong build, two eyes, and a mouth. Located on its chest is a cone-shaped gemstone with a slightly elevated base. While the cone portion is a consistent dark blue, the base is separated by an elevation and contains differing shades of blue.

Abilities

 * Invisibility: The Invisible Gem Monster's primary ability is, as the name suggests, invisibility.
 * Enhanced Strength: It is incredibly strong, with enough strength to pop Steven's bubble shield.
 * Hypothetical Weather Manipulation: It may have some control over the weather. Upon encountering Lars, Sadie, and Steven and knocking them off a cliff, a heavy downpour overshadowed bright daylight in a matter of seconds.

Trivia

 * This is the first Gem monster in the series to be defeated by a human, without the direct intervention of the Crystal Gems.
 * It has the same gemstone placement as Amethyst, on its chest.
 * Despite having hands, the Invisible Gem Monster runs on all fours.
 * So far, this is the only known Gem that has the power to become invisible.

Gemstone
Monstruo_Invisible