The manuscript, expected to net at least $250,000, was offered for sale online by the Amherst-based auction house RR Auction.
RR Auction says the winning bidder is Russian retail billionaire Igor Sosin, who plans to display it in Moscow and Monaco.
Capote's handwritten notations include changing the femme fatale's name from Connie Gustafson to the now-iconic Holly Golightly.
Its plot - built around a woman who supports herself through trysts with wealthy lovers - was scandalous. Harper's Bazaar bought serialization rights, then balked at its explicit content. Esquire magazine purchased it from Harper's and launched it to its 1961 silver screen adaptation starring Audrey Hepburn.
