In early May, Christie's invited a group of 18 new collectors from China to visit New York. The auction house escorted the guests on guided tours through the Museum of Modern Art, arranged VIP tickets to a local art fair and threw a lavish dinner in the Rockefeller Center ballroom of Christie's. Auctioneers also reserved two discreet skyboxes overlooking the house's saleroom so the group could watch its major spring sales of Impressionist, modern and contemporary art.

Christie's efforts paid off: During its May 13 contemporary art sale, members of the group placed bids on at least half the top 10 priciest pieces in what became an historic, $745 million auction.