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The Land is an unnamed area, the only land of the earth that the story takes place in. It is shaped similarly to a crescent, surrounded by the sea, and has one beach.. The Land is constantly attacked by the Moon People in order to capture the Gems. The Gems' main duty is to patrol the land and inform their sensei if the Moon People come.


The land is the home of The Gems, some plants, and some small organisms.

There has been shown to be birds, butterflies, and bees, along with grass, trees, lily pads, onion-like plants, berries, cannabis, hemp, shrubs, flowers, and other herbs. Most of the land is a meadow. According to Cinnabar, there are shelled organisms on the beach.

The jellyfish that normally live in the sea are also abundantly found in the school's pond. It is unknown how they got into the pond, but most likely the Gems moved them for lighting purpose. The jellyfish seem to be aware about the Gems and can interact with them in very basic ways. Euclase once asked for anti-salt resin to protect themself before dipping into the pond, implying that the land does not have fresh water.


As told by Kongo-sensei

According to Kongo-sensei, six meteors had visited the planet in the past. After the planet was broken by the sixth meteor, it gave birth to six moons, leaving it an emaciated shadow of its former self. There was nothing left but a single beach, so all life fled to the ocean. Some creatures who had flourished when there was still one moon were too slow in their escape and sunk into the seas. They were eaten by tiny creatures on ocean's floor, turned to inanimate objects, crystallized over the ages, and thrown back to the beach.

As told by Ventricosus

According to the Admirabilis, their legend said once there lived animals called humans who lived and persevered on the land until it was broken five times. When it broke the sixth time, they entered the seas. It is said that there, they split into three parts; the spirit, flesh, and bone. In other words, they evolved into three different species and lived on. The Admirabilis are said to be the flesh, a mortal species that can reproduce and live and die, inheriting the ability to expand and pass down the knowledge. The Gems/bones are said to have made a contract with other living creatures in the sea, and gained the ability to become immortal, they return to the land. The spirit are said to be wandering, attempting to regain its flesh and and bone, and returning to their older form.


The Beach

The Cord Shore (Winter)

The Cord Shore (Winter)

Along the southwest lies the Shore of Nascency (緒の浜, o no hama) (also translated as Beach of Beginnings or Cord Shore), where crystals and metals have risen from the ocean floor, oozing from the rock formations found there. In rare instances, they will take the form of fully humanoid Gems. This is the site of Antarcticite's abduction, where Phosphophyllite's new arms were found and attached, and where Rutile picked suitable ruby samples for Padparadscha.

The Swamp

The swamp is a wet, murky location with a few dead trees scattered around. Phosphophyllite was found here when they could not control the speed of their new legs.

The Hollow Cape

Located in the south of the land. This is the site of Heliodor's abduction by the Lunarians and a frequent haunt of Cinnabar's.

The High Fields

Is located on the west of the land. The Moon People 'Sunspot' commonly appears in that area.

The Forest of Blue

There's powder flower berries that Rutile asks the Gems to pick frequently.

The Hills of White


Most likely near the Hollow Cape. This is where Cinnabar lives, isolating themself here.

The School

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The School is where the Gems study, work, and reside. It is a large, spacious building located somewhat in the center of the Land. The building has at least six floors, narrow halls, lots of rooms, and many big windows. The building has suffered occasional damage whenever Kongo-sensei becomes angry, as well as during the winter when he falls asleep and crashes into a pillar. The School has also received damage during certain Moon People attacks.

The front of the school has a pond filled with jellyfish and a bell hanging from a tall stand. The bell is used to signal other Gems both within the School and on patrol all over the island. The Gems ring the bell a certain number of times for certain signals, including Sunspot sightings, warnings to stay put, and warnings to retreat back to the School.

The School has several rooms in addition to individual sleeping quarters for each Gem. This includes area for crafting, meeting and strategizing, tailoring, medical work, and others. Though the Gems each have their own room, during the Winter they hibernate together in a single large chamber. Kongo-sensei also has an inner temple where he meditates. The Gems do not use much technology so the School receives natural light during the day while during the night they use the glow of jellyfish instead.


  • When winter comes, the sea freezes and tiny organisms get mixed in and takes form. Kongo-sensei called them the "sinful ones". According to him ice floes are like the gems but can only make sounds like words. It has the ability to reflect the unease those who see it. Phos can understand what they say.


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