it's so coveted, that it sold on the market and at charity auctions for huge sums of money. >> [speaking non-english] >> this season's largest white truffles are selling to bitters from italy and around the world. >> [speaking non-english] >> the auctioneer is my friend from turin, food writer, hello. he's got his work cut out for him. bids for the delicate fungi coming thick and fast. >> [speaking non-english] >> luckily, the buyers aren't put off. the white truffles value seems to be pretty much indestructible. >> [speaking non-english] >> last up, a truffle weighing close to two pounds, pulling in bitters from moscow in hong kong. >> [speaking non-english]