Giorno is a teenage boy of average height, a slim yet muscular build. He has golden hair of moderate length tied back in a short, braided tail, with his bangs curled into three distinctive oversized ringlets arranged in a row over his forehead.

Giorno wears a two-piece suit with a checkered coat tail and several ornate features, including wing-shaped emblems on the collar and a heart-shaped opening in the chest area. ladybug emblems on either side of his chest.