Gigli did his first fashion designs in 1972 and set up his own label, manufactured by the Novara based company Zamasport, in 1983.
In 1991, he separated from his business partners Donato Maiano and Carla Sozzani and restructured his business. His house is now a million dollar concern.
In 1993, Romeo Gigli introduced a new line, the G GIGLI (G for giovane) Line of clothes, including jackets and trousers, that is interchangeable for both women and men. It is for young people.
His fashion is replacing its tailored, colourful traditions with a subtle colour range and fluid garments which would be widely influential. Often made of stretch fabrics, his clothes gently drape the body in a classical sense, but are thoroughly modern in treatment in the manner and angles at which they fasten or attach, or in their unexpected exaggerated shapes, Gigli's womenswear designs are essentially romantic. His velvet and embroidered capes and boleros and his wrapped tops and skirts, were highly successful during the mid-80's. His palette is subdued but deeply vibrant and ultimately highly sophisticated.