Genoa president Enrico Preziosi has given Inter an estimate at what they can expect to pay to sign Andrea Ranocchia on a permanent basis: €10 million.
Ranocchia is currently on a co-ownership deal between both clubs and he is widely expected to return to Inter on a full-term basis at the end of the season.
But the Nerazzurri have been informed they will need to mount a wealthy bid to secure his services as Preziosi values him at €20m. This means Inter will have to pay at least €10m to obtain Genoa's half of the player's registration rights.
"If Massimo Moratti wants to speak about it now then he can," Preziosi told La Gazzetta dello Sport as he called an early auction.
But, there is no room for January talks, despite his encoragement to negotiate.
"Let it be clear that Ranocchia will remain with us until the end of the season," he added.
"He is worth at least €20m now as he is a great talent. He is like Alessandro Nesta. Defenders like these are few."