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Villains Wiki

Great North Gem Monsters

The Great North Gem Monsters are two Corrupted Gems that are antagonists in the Cartoon Network show Steven Universe. These two Gem Monsters made their appearance in the episode, "Gem Hunt", where they are encountered by Steven, Connie, and Pearl during their journey in the Great North. Jasper gathered these two Gem Monsters to attack the Crystal Gems.

Ocean Jasper Gem Monster

This gem monster has three short horns and is aqua green with red lines and light pink spots. Its gem is also on its chest. In "Gem Hunt", it is encountered alongside Biggs Jasper, and Steven and Connie find it cornered at the bottom of a cliff. After Pearl talks loudly on the Cookie Cat walkie talkie, the monster directs it's attention to Steven and Connie and attempts to kill them, but Jasper poofs the gem before it could do so and walks away with both it's and Biggs Jasper's gem after she gloats at Steven.

In "Crack the Whip", Jasper uses Ocean Jasper as a steed to fight Steven and Connie, who fuse into Stevonnie during the fight. After Ocean Jasper is poofed again, Jasper takes it's gem and retreats to the bottom of the ocean, intending to come back for revenge.

In "Earthlings", Ocean Jasper is shown to have been locked away in the Beta Kindergarten were Jasper first emerged from during the ancient Gem war. During her fight with Steven and Amethyst in their new Gem Fusion Smokey Quartz, Jasper forcefully fused with Ocean Jasper into a ferocious Quartz Fusion, but were eventually separated. Ocean Jasper was last seen running away seconds before Jasper's transformation into a Gem Monster began.

Biggs Jasper Gem Monster

This gem monster has three horns each and is colored orange and brown. Just like the Blue Gem Monster, the Biggs Jasper Monster's gem is also in its chest. It appears in "Gem Hunt" alongside Ocean Jasper, however, it retreats with the Gem Monster before it can fight Steven, Connie, and Pearl. It was then shown to be poofed by Jasper off-screen.

In "Crack the Whip", Biggs Jasper emerges from the water of Beach City and it scares Sour Cream away. Amethyst eventually ties the creature with her whip and poofs its gem, which Steven bubbles and sends back to the Burning Room with the other Corrupted Gems.

In "Made of Honor", Bismuth is freed by Steven and also releases Biggs Jasper, stating that she was beloved by everyone. The corrupted Biggs however attacks Bismuth and Steven, leaving Bismuth no choice but to poof her back to her gem state.



  • While it has not been officially confirmed on the show, these Gems are speculated to be named "Ocean Jasper" and "Biggs Jasper" respectively. They are also speculated to be named "Bloodstone" and "Desert Jasper". The first latter is confirmed to be true as in the episode "Made of Honor", Bismuth confirms that the Orange Jasper is actually Biggs Jasper.
  • Jasper refers to Ocean Jasper as formally being a Quartz, implying that Biggs Jasper and all of the minor Gem Monsters in "Earthlings" that share the same body-type as Ocean Jasper are Quartz-type Gems.


          StevenUniverseTitle.png Villains

Great Diamond Authority
White Diamond | Yellow Diamond | Blue Diamond | Pink Diamond

Homeworld Gems
Peridot | Lapis Lazuli | Jasper | Yellow Diamond's Pearl | Blue Diamond's Pearl | Pink Pearl | Eyeball Ruby | Navy Ruby | Holly Blue Agate | Aquamarine | Topaz | Emerald | Hessonite | Squaridot | Pyrope | Demantoid | Spinel

Fusion Gems
Sugilite | Malachite | Cluster Gems | Cluster | Unknown Quartz Fusion | Bluebird Azurite

Gem Monsters
Centipeetle Mother | Albite | Gem Cave Creature | Big Bird | Ice Monster | Invisible Gem Monster | Lighthouse Gem Monster | Slinker | Great North Gem Monsters | Grossular Diopside | Monster Steven

Robonoids | Bismuth | Holo-Connie | Marty | Frybo