Red Diamond (Moon Repairs)

Red Diamond is a character from Moon Repairs. They are the first gem to be born, and the first gem to be taken to the moon.

Appearance
Red Diamond has shoulder-length hair with bangs that part to the side. Their hair and eyes are red. They wear an off the shoulder dress with wide, partially-transparent sleeves, and an open back. Sometimes they wear red gloves.

Personality
Initially Red Diamond had a very carefree and innocent personality. However, after being taken to the moon, they are more serious and rarely smiles. Red doesn't realize how much they've changed.

Story
Red Diamond was born 6,834 years before the start of Moon Repairs, making them the oldest gem. They were taken to the moon when they were 3,147 years old.

After coming to the moon, they are told by Aechmea about the Lunarians' plight. Because of Red's empathetic nature, they agree to help but argue that the Lunarians have to find a gem that does not love Kongo. Some time later, they end up becoming the official advisor on gem-related matters.

When Phosphophyllite arrives on the moon, Red realizes that this condition has been fulfilled.

Kongo
On Earth, Red Diamond was very close with Kongo, having a master-student and parent-child relationship. After coming to the moon, Red initially missed him very much and thought about going back constantly. However, after thousands of years passed, Red slowly stopped caring so much about him. They haven't noticed this change has taken place.

Gems
While on Earth, Red had a friendly, sibling-like relationship with the other gems. Despite being the eldest, they enjoyed acting like a "little brother." Because they spent a lot of time alone on the moon, Red started to think about the other gems with less familiarity. By the time another gem was taken to the moon, Red would treat every gem with an aloof, business-like attitude.

Fluorite
Because Fluorite was the second gem to be born, they ended up becoming Red's best friend. The two spent the majority of their time playing and studying together. After they were taken to the moon, Red began to care less and less about Fluorite; when Fluorite finally was taken to the moon as well, they and Red hardly talked.

Green Diamond
Red and Green Diamond were not as close as friends, but still had an amicable relationship. After Green is taken to the moon, they are surprised by how much Red has changed, and surprised that Red doesn't realize it. They hang around Red due to worry, which Red Diamond thinks is unnecessary.

Phosphophyllite
Like with most gems, Red talks to Phos in an impersonal and professional manner. However, they quickly realize that Phos does not unconditionally love Kongo, and is perfect to carry out the Lunarians' plan.

Aechmea
Because Red Diamond was taken in the first Lunarian attack, they do not resent Lunarians or Aechmea. Instead, Red is sympathetic and agrees to help as best they can. After thousands of years, Red only has a professional relationship with Aechmea, but they have grown to respect him and do not see anything wrong with what he is doing.