Diamond

Diamond, also called Dia, is one of the Gems who mainly does patrol duty. Despite their high offensive power, their toughness is second rate and they're easily broken. The other Gems consider them lovely and a top fashion model. Diamond has a clear, colorless scheme yet their gem's characteristic gives them high light dispersion, thus creating rainbow reflections. They are very sparkly and blinding. They sparkle and glow even during the night, though they seem to be able to dampen it by covering part of it up. Their hair is a fluffy short-medium bob, with thick eyebrows and eyelashes. On Earth, they wore either a winter or summer uniform depending on the season. They also wore standard black loafers with small bows. As a diamond, they always wore white opera gloves with white thigh-highs. On the Moon, they wear feminine and frilly outfits that often resemble dresses with puffy skirts. During the Invasion Arc's invasion, the back of their head had a huge bow, they wore a light halterneck leotard with vertical stripes, they also wore a huge flower-shaped skirt and wore pointed toe boots with high heels and wore opera gloves. They wielded a sword as a weapon that was tough enough to break Bort. Diamond is initially very friendly, kind, and gentle. They appear to be relatively calm during battle, even when their situation isn't good. However, they are actually insecure and frustrated with their current body which, though being the hardest, shatters easily. Dia wishes to change this. Dia dislikes being compared to Bort although they admire their younger sibling a lot. They are perceptive regarding Gems' inner feelings and relationships, though Cinnabar accuses them of seeing everything as some kind of romance. Despite their more gentle nature, they're very stubborn and tend to fight until they shatter in battle. From Bort's point of view, Dia is extremely reckless. Diamond's contempt towards of Bort reaches a head in later chapters when Dia forces them into fighting, furious that the gem would not only show a softer side to someone else, but also abandon the one thing that they were so much better at. It's here that Diamond shows that they've gotten egotistical on the moon, ordering their fans to cheer and belittling them for not being good enough.