Topping the list is this one-off Barbie designed by Australian jeweler Stefano Canturi in 2010. Underpinning the fabulous doll's value is her showpiece necklace. It dazzles with a rare one-carat pink diamond from Australia's Argyle mine, surrounded by three carats of white diamonds.

Christie's auctioned the doll in New York for $302,500, setting a world record for the most expensive Barbie ever sold, with the proceeds benefiting the Breast Cancer Research Foundation. That sky-high price is equivalent to $464,700 today.

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