The 21-year-old has been handed two senior international appearances and played the full 90 minutes in both matches, quickly making an impression on the France manager.
Jacquet has taken his opportunity after being called into the senior squad, and Zidane was particularly impressed by the defender's confidence.
“He was really good — really, really good,” Zidane said.
“He was brave and isn't afraid to go far forward. He was good in his duels. All in all he was good, but I've said that four times now.”
Jacquet's performances against Belgium and Italy have given him a strong start at international level.
The Liverpool defender has shown that he is comfortable stepping forward from defence while also competing effectively in one-on-one situations.
With only two senior caps to his name, Jacquet is still at the beginning of his France career, but his first outings have clearly caught Zidane's attention.
The manager's repeated praise underlines the impression made by the young defender during his first opportunities with the national team.
For Jacquet, the challenge now will be to maintain that level and establish himself as a regular option for France.
His performances have provided an encouraging start, while Zidane's comments offer further evidence that the defender has made the most of his introduction to international football.
The next matches will determine how quickly Jacquet can build on his first two appearances, but his start has already placed him firmly in the manager's plans.
At just 21, the Liverpool player now has the opportunity to turn those initial performances into a sustained role at senior international level.