Riccitelli has played himself into the starting role this season, his second with the franchise, and he has now played 21 times for the side since joining from the Hurricanes for the 2022 season.
Now sporting 92 Super Rugby appearances, he said he was pleased to sign for another two years with the Blues.
"I've met some great blokes since making the move north, and I enjoy living with a few of the boys [Sam Darry, Finlay Christie, Adrian Choat and Tom Robinson] up here.
"It's been nice to see regular game time this season, and I'm keen to build on those performances in the coming years.
"It's a place where I feel I can maximise my potential and contribute to a team to perform at its best."
With the Blues performing more consistently at the late end of the season, they were looking to ensure their home playoffs berth against the Highlanders on Friday.
"We've hit our straps in recent weeks and need a strong performance against the Highlanders to lock in home advantage for the playoffs. As a team, we are building nicely and need that momentum to continue as we get to the pointy end of the season.
Blues' assistant coach Paul Tito said he expected Riccitelli to build on what he has shown this season.
"Ricky consistently demonstrates his value to the team. His ability at set piece, powerful ball carrying and work ethic make him an asset to our team.
"He's one of the hardest trainers in the group and often one of the last to leave the training paddock. He brings energy and experience to our forward pack and works well with the younger members of the squad to improve their skills."