Lapis

Lapis Lazuli, or Lapis for short, is a member of the Crystal Gems. During her alignment with the Gem Homeworld, she was caught in the crossfire of The Rebellion and got poofed by Bismuth so Homeworld mistook her for one of the Crystal Gems and imprisoned her within a magical mirror. She would remain in the mirror for thousands of years until she eventually convinced Steven to free her. Once she returned to Homeworld she was forced back to Earth by Peridot and Jasper, the latter of whom she fused with into Malachite to imprison, protecting Steven and taking her own anger out on. After she unfused and decided she had no other choice but to live on Earth, as she trapped a highly regarded soldier, she lived at The Barn with the reformed Peridot until the threat of another war became a reality. She left Earth and took the Barn with her to the Moon until Steven found her and convinced her to come back but she decided to leave the Moon after he had another vision of The Great Diamond Authority. However, she returned to Earth to fight against the Diamonds in "Reunited" becoming a Crystal Gem in the process. She made her debut in "Mirror Gem".

Years later, she now lives with Bismuth and Peridot in Little Homeworld. She is shown to be more cheerful throughout the movie though still retains a dark sense of humor, like when she jokingly claims to still be on the fence when they talk about how long it took for them to stop wanting to hurt Steven.

Appearance
Lapis has a slim figure and is considerably tall, being about the same height as Pearl. She has cyan skin, cobalt blue chin-length hair with long bangs and fringe that covers her entire forehead, which occasionally looks messier and rounded, and royal blue eyes. Her gemstone is embedded in her back, which takes the form of a water droplet.

Pre-regeneration (debut)
Lapis wore a backless blue halter crop top with an upward-facing navy triangle, which ties into a blue sash ribbon on the back of her shoulders. She also wore a flowing cobalt blue skirt, which is calf-length with a downward-facing navy triangle around the waist, and wore no shoes.

Before Steven healed her cracked gemstone, Lapis had reflective eyes without pupils and appears with a blue navy tone.

Post-regeneration (current)
After regenerating shortly before the event of "Change Your Mind", Lapis wears a backless, halter crop tank top that is blue on top and navy on the bottom resembling half a star. She also wears puffy dark-blue pants, which represent the second half of the star tied up by a bronze-gold ribbon, and matching sandals.

It can be noted that Lapis' hair and skin colors are slightly different shades. Her hair is longer and messier in the back and fringe, while the bangs on the sides of her face are a little shorter. Her summoned wings have a darker shade of blue now, but it isn't confirmed if it is intentional or a mistake.