Rose 'gave up her physical form' to create Steven, leaving behind only her pink, pentagonal-faceted gem, now embedded in his navel. He is the first and only known Gem–human hybrid, the product of the union between the Crystal Gems' original leader, Rose Quartz, and Greg Universe, a human musician and car-wash owner.

Steven, in his early teens when the series begins, is the youngest member of the Crystal Gems. Character Zach Callison, Steven's voice actor. This inspired Steven's iconic star t-shirt. During the development of the pilot, Rebecca Sugar had a conversation with Hellboy creator Mike Mignola in which he emphasized the importance of repetitive imagery to create a motif. Steven was created by Rebecca Sugar, with his appearance and name based on Rebecca Sugar's brother Steven Sugar, a background artist for the show.

The character was received positively, with his evolution through the series, ideology revolving around kindness and empathy, and gender non-conformity receiving most praise. As such, the only scenes without the character are those that he sees as visions, that are told to him as stories or when he's fused and seeing through the eyes of the fusion. The show generally takes place around Steven's perspective: the audience always follows Steven and learns about the plot and backstory as he does. Voiced by Zach Callison, he debuted in the series' pilot episode and made his main series debut in the first episode, ' Gem Glow'. Steven is a hybrid between a normal human being and a 'Gem', a fictional race of alien beings that exist as magical gemstones projecting bodies of light. Steven Quartz Universe is the eponymous protagonist of the animated series Steven Universe and its epilogue series Steven Universe Future, created by Rebecca Sugar. Obsidian (with Garnet, Amethyst and Pearl) Right: Steven’s appearance in Steven Universe Future Left: Steven's appearance in Steven Universe

Steven universe yellow gems