Celebrity Celebrity Relationships Celebrity Engagements Could Rose Byrne and Bobby Cannavale Be Engaged? Actress Spotted with Diamond Ring on 'That' Finger The couple have been dating for over four years and share son Rocco, 9 months By Lindsay Kimble Lindsay Kimble Lindsay Kimble is the Executive Editor, News at PEOPLE. She have been working at PEOPLE for seven years. Her work has previously appeared in POPSUGAR, Us Weekly and Entertainment Weekly. People Editorial Guidelines Published on November 21, 2016 09:50PM EST Photo: D Dipasupil/Filmmagic It appears Rose Byrne and Bobby Cannavale could be walking down the aisle soon. Byrne, 37, was spotted out and about in her native Australia last week, wearing a stunning rock — hinting that the pair are planning nuptials. The square-cut bling appears to be white gold and feature a halo of diamonds. Reps for the pair have not commented on a possible engagement. The couple, who have been dating for over four years, are parents to son Rocco, 9 months. PMC Images / MEGA PMC Images / MEGA The Vinyl star and Byrne not only share a life offscreen, but have also appeared together onscreen in Annie, Spy and Adult Beginners. Mixing personal with the professional “is a very intense thing you can experience together,” Byrne told PEOPLE in 2015. “It’s not for everybody, but I think he’s such a great actor.” RELATED VIDEO: Can You Guess Which Neighbors 2 Star Got Kicked Out of College? And Cannavale’s acting wasn’t all that stole Byrne’s heart: he’s also a “great cook,” she said. “He’s Cuban and he does a couple of really good Cuban dishes like arroz con pollo and Cuban cocktail,” Byrne gushed of Cannavale, 46. “He’s better than I am. I’m the good cleaner after!”