The winning bid in the 10th annual fund-raiser fell short of last year's record $2.11 million, paid by Hong Kong-based investor Zhao Danyang. The starting price was $25,000.

The identity of the winning bidder could not immediately be determined. EBay was not immediately available for comment. A call to Buffett was not immediately returned.

The auction benefits the Glide Foundation, a nonprofit in San Francisco's Tenderloin district that offers housing, job training, health and child care, and meals for the poor.

The winning bid is the second highest ever paid for the lunch. Winning bidders agreed to pay $650,100 in 2007 and $620,100 in 2006.