The Italian Red Cross and CharityStars, a fund-raising website, is auctioning off a "business lunch" in Milan with 80-year-old Berlusconi, who faced a string of legal cases before being convicted of corporate tax fraud in 2013.
"Il Cavaliere", as he is known, was given a community service order and kicked out of parliament.
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The proceeds will go toward the victims of the string of quakes that struck central Italy over the past six months, killing scores of people and leaving thousands homeless for months.
On Thursday afternoon, the bidding for lunch with someone CharityStars described as a "communications genius and popular politician" who is "one of the pillars of Italian politics and society" stood at a hefty 100,000 euros ($106,000).
CharityStars does not say where the lucky winner and two guests will dine, and notes that travel costs are not included.
It also says the date will depend on Berlusconi's schedule.
"Dear friends, I have decided to participate in these auctions... because I believe each of us must do everything possible to help fellow citizens in difficulty," Berlusconi wrote on his Facebook page.
"I hope the auction bidding will go very high."
The auction ends on March 16th.