The Ligue 1 champions are reportedly willing to match the 26-year-old's €63 million (£53.8m) minimum fee release clause and have already agreed personal terms with Cavani over a five-year deal.
|5/1||Chelsea are 5/1 with BetVictor to sign Edinson Cavani this summer
"I have texted De Laurentiis to congratulate him on doing even better than I did [while dealing with PSG]. He has outdone the €43 million (£37m) that we got for Javier Pastore when we sold him to PSG," the Palermo president told Radio Radio.
"De Laurentiis had to make this deal. He did well to say that he wanted a transfer fee like this.
"Cavani is a unique player. He couldn't stay at Napoli because he has to think about his career and PSG are offering him €8m (£6.9m) per year."
Cavani started his European career at Palermo in 2007 after a previous spell at Danubio and eventually joined Napoli in the summer of 2010.
He has since developed into one of the most sought-after players around in Europe, with clubs such as Manchester City, Real Madrid and Chelsea all rivalling PSG for the striker's signature.
The French giants are leading the race for Cavani's signature, though, with reports from Italy claiming they could complete the deal in the upcoming days.