"How dare you fuse with a member of my court? You will be broken for this!"
|—Blue Diamond to Ruby, "The Answer"|
Blue Diamond has a dark navy blue complexion and wears a long, blue cloak of a slightly lighter shade. Her gemstone is located on her chest. She is also noticeably tall in height. This is clearly seen when her Pearl is standing next to her. She has somewhat plump lips and a straight nose.
Sapphire was an aristocratic member of Blue Diamond's court. She was valued very highly because of her ability to see into the future, and even sentenced Ruby to be shattered for fusing with her.
Blue Diamond has her own Pearl, assumed to be her servant. Due to her brief and silent debut, not much is known about her.
- "The Answer" (debut) (flashback)
- Blue Diamond is the first of the Diamonds to be seen on-screen of an episode of Steven Universe, but second to be seen overall. (The first being Yellow Diamond)
- Diamond is the official modern birthstone for April, and it is also used as an official sixty year anniversary gemstone.
- Diamonds are the stone of truth and victory.
- It is associated with lightning and fearlessness, and for its properties of protection.
- The diamond, in its rarity and beauty, is a symbol of purity and innocence, of love and fidelity, and embraces strength of character, ethics, and faithfulness to oneself and others.
- Diamond is the transparent, gemstone-quality crystalline form of carbon and it is indeed one of the hardest known natural substances on Earth.
- Diamonds' hardness is the result of extremely strong chemical bonds between the carbon atoms.
- There is no other gemstone in the same family as diamond, although there are a variety of very similar gemstones.
- Diamond is pure carbon and is chemically the same as graphite.
- Although traditional colorless or "white diamonds" are by far the most popular colored diamonds, yellow and brown diamonds are actually the most commonly occurring diamonds.
- Other diamond colors include pink, red, orange, yellow, green, gray and black.
- Specific colors will trade under specific names.
- Brown and yellow diamonds are often referred to as "champagne" or "cognac" diamonds.
- If a diamond's impurities consist of boron and low level of nitrogen, the diamond will be a blue color. Other blue diamonds are unrelated to boron; nickel or high concentrations of hydrogen are the hypothetical causes of blue color in some diamonds.
- Diamond deposits are found worldwide, the most notable being Africa, Australia and India.
- Approximately half of the world's diamonds come from Central and Southern Africa.
- Canada has recently become a main commercial source for fine white diamonds.
- One of the most famous diamonds, the Hope Diamond, is a blue diamond, and is one of the largest diamonds to ever be cut and faceted. Other famous blue diamonds include Blue Moon, Heart of Eternity and French Blue.
- A notorious New Age scamming site, The Council of Love, utilises the blue diamond as a symbol of the Virgin Mary, which may have inspired Blue Diamond's aesthetic similarities to the figure.
|Blue Diamond's gemstone is located on her chest, featuring a diamond-shaped facet.|