Lapis Lazuli is a former Homeworld Gem that made her debut in "Mirror Gem". She was imprisoned within a magical mirror for thousands of years until she eventually convinced Steven to free her. As of "Same Old World", she has chosen to reside on Earth and is currently living at the barn with Peridot.
Role in the series
While she is kind and friendly with Steven Universe, Lapis Lazuli is bitter, vindictive, and mistrusting towards all the other Crystal Gems, believing they care more about the Earth than their own kind, due to their betrayal of Homeworld and leaving her trapped in the mirror after finding her.
When confronted with an enemy more powerful than herself, she displays a defeatist and worried approach. She believes that putting up a struggle can only make the situation worse. In "The Message", she delivers a frantic message to Steven about the approaching invasion, begging him to submit to the Homeworld should they cross paths. In "Jail Break", she gives similar advice when Steven stumbled across her, mentioning Homeworld might go easy on them if they follow orders. However, Lapis can change into an aggressive being if necessary.
She expresses an overwhelming desire to return home, going as far as to use one of the Earth's oceans to create a giant water construct for the purpose of using it as a lift in order to get closer. In doing so, she shows that she can be rather inconsiderate and indifferent, as she does not care about the human race nor the Earth, with the exception of Steven. Overall, Lapis is a passionate Gem who doesn't hesitate to fight anyone who stands against her, but is grateful to Steven for releasing her and then healing her gemstone despite being pained at her hand. Lapis is also portrayed as being a martyr, loyal to Steven and willing to suffer if it means protecting him from Jasper or any danger in addition to Malachite.
One of Lapis' notable characteristics is her strong willpower. Even with a cracked gemstone, through sheer determination, Lapis managed to control an entire ocean and, once her gemstone was healed, fly an unimaginable distance to Homeworld. Lapis' strength of mind is so great that she suppressed the equally resolved Jasper for months on end. Detrimentally, however, she is also shown to be very stubborn and hesitant in cooperating or accepting help from others unless she has no other choice, seen in both "Jail Break", when she refuses to be set free by Steven, and "Chille Tid", where she is reluctant to give the Crystal Gems her location for them to find her and aid in the situation.