Board Thread:General Discussion/@comment-25188860-20150313171051/@comment-26812261-20150317050853

Yeah, Lapis was stuck in her cell because she chose to refuse Steven's help when it was offered. That's on her, not Garnet. Fusing with Jasper to imprison her was Lapis' choice as well, though I'm not really sure why she didn't just use the ocean to take Jasper apart. Maybe she just felt like she had nowhere to go, having lost the Homeworld she remembered and presumably still disliking the Crystal Gems, so she just retreated into her element and wanted to throw in a favor to her one and only friend in the universe in the process.