His opening goal in the 2-0 victory against Sunderland was his sixth of the season and put his side on the way to three points which all but secured their top-flight status.
"If somebody does come in for him they are going to have to pay a lot of money to get him," added the Trotters boss.
"Then they're going to have pay Dioufy what we pay him in wages - which is a lot of money as well.
"It's not a done deal that he will be going and there have to be a lot of things that trigger any move.
"I don't want him to go but if he does then it will be the best for Bolton and nothing else - and we'll make sure we get a good fee for him."