Celestia is part of the Decora Fashion Girlz collection, featuring a design inspired by cosmic themes with starry-eyed details and hair resembling swirling galaxies. Her rooted nylon hair is soft and designed for styling. The doll has an articulated body for posing, allowing for dynamic displays of fashion. Her outfit follows the Decora Kei aesthetic, characterized by layered clothing, bright colors, and decorative stickers. The design emphasizes bold, playful fashion trends.