YVES SAINT LAURENT did it, and made a fortune. Now Donna Karan, the American working woman's favourite designer, is planning to do it.

According to well-informed sources on Seventh Avenue, heart of the New York fashion trade, the designer who invented the body will join the stock market. Karan is arguably the world's fastest-growing designer name, with sales of dollars 270m last year, the sort of figure of which British designers can but dream. Ms Karan herself is refusing to comment on the rumours, but the word is that investment firms are queuing up to handle the share offer.