Are longtime lovers Paul Dano and Zoe Kazan getting married soon?

The pair sparked engagement rumors on Monday, Aug. 8, when Kazan showed up to dinner at the Grand Army restaurant in Boerum Hill, Brooklyn wearing what appeared to be an engagement ring on her left hand.

“She had a rock on her finger,” an eyewitness at the eatery told New York Post’s Page Six. Another onlooker added that whatever that ring was, it “definitely” looked like an engagement ring.

Kazan and Dano, both 32, were joined by a woman at their table in what seemed to be a meeting about an upcoming movie project. Although they were discussing business matters, sources told the outlet that the lovebirds sat next to each other and Kazan had her hand on Dano’s knee.

Reps for Kazan and Dano didn’t respond to requests for a comment, but it's not the first time the “What If” actress has been spotted wearing a piece of jewelry on her ring finger. According to Page Six, Kazan was also pictured wearing a very telling ring in late July.

The couple, who began dating back in 2007, is known for their low-key relationship. But back in 2012, the “Little Miss Sunshine” actor opened up about how he and Kazan managed to keep their relationship strong despite their hectic schedules as thespians.

“Choose your battles wisely,” he told Huffington Post when asked how he and Kazan make their romance work. “We’re pretty good. When she’s more busy, I let her put on ‘Project Runway’ or whatever. But if I’m more busy, I get to watch the Knicks game so we sort of balance each other out.”

“The worst part [as actors] is one of us is often going away to work somewhere far,” Dano added. “Sometimes we both have to. That’s by far the hardest thing about it. And the best thing about it that we can help each other out. We’re there for each other in a way that is I think uncommon. We both understand what each other does and we’re very supportive.”

Earlier this month, Entertainment Weekly confirmed that Dano is set to direct his first feature film, an adaptation of Richard Ford’s 1990 coming-of-age novel “Wildlife,” from a script he co-wrote with Kazan.

Zoe Kazan and Paul Dano Paul Dano And Zoe Kazan sparked engagement rumors earlier this week when Kazan showed up to dinner at a Brooklyn restaurant wearing what appeared to be an engagement ring on her left hand. Pictured: Kazan and Dano attend the 2016 Vanity Fair Oscar Party Hosted By Graydon Carter at the Wallis Annenberg Center for the Performing Arts on February 28, 2016 in Beverly Hills, Calif. Photo: Getty Images/Pascal Le Segretain