A solid gold sculpture of British supermodel Kate Moss worth STG1.5 million ($A3.21 million) has been unveiled in London.

The 50-kilogram work unveiled today is by artist Marc Quinn, previously famous for a controversial sculpture installed in London's Trafalgar Square of a pregnant woman with no arms due to a medical condition.

"I thought the next thing to do would be to make a sculpture of the person who's the ideal beauty of the moment. But even Kate Moss doesn't live up to the image," he said.

Moss herself has been in the news this week for her latest comments on size zero fashion models, in which she lamented how thin she has been at earlier stages in her career.

"I didn't eat for a long time. Not on purpose. You'd be on shoots with bad food or get on a plane and the food would be so disgusting you couldn't eat it," she told US magazine Interview, widely cited in the British press.

"I remember standing up in the bath one day and ... I was so thin! I was never anorexic.... I remember thinking, I don't want to be this skinny."

The golden sculpture, entitled "Siren," will go on display surrounded by other pieces including Crouching Venus, the goddess of love, at the Nereid Gallery of the British Museum on October 4. The show runs until January 25.

AFP