It’s been reported that the highly rated 19-year-old has decided to move to PSG over Premier League side Liverpool should he leave Leipzig this summer.
The German club still hope to keep Diomande for another season, but that is starting to look increasingly unlikely.
According to Fabrizio Romano, the winger has agreed to a five-year deal with the French champions ahead of a potential move.
Club-to-club talks are set to begin, with RB Leipzig holding out for a fee of around €130 million (£112m) for the Ivory Coast international.