The world’s most expensive Barbie was sold in an auction at Christie’s in New York, USA, on 20 October 2010, for a price of $302,500 (then approx. £192,000). The custom-designed doll stands 11.5 inches tall and wears a strapless black evening dress and a one-carat pink diamond necklace surrounded by three carats of white diamonds. All proceeds from the auction were donated to breast cancer research.The doll, first unveiled on 4 May 2010, during Australian Fashion week, was designed by world-famous Australian jeweller Stefano Canturi, who has also made jewellery for the likes of Nicole Kidman, Oprah Winfrey and Kylie Minogue. The designer was enlisted by Barbie manufacturer Mattel to help promote the launch of the Barbie Basics range in Australia, which features dolls wearing commonly available clothing.