On Monday morning, the actor announced the couple's engagement on social media with a photo that puts Schwarzenegger's new diamond ring front and centre.
"Sweet Katherine, so happy you said yes! I’m thrilled to be marrying you. Proud to live boldly in faith with you. Here we go!", he wrote alongside a snap of the pair sharing a sweet embrace.
Pratt and Schwarzenegger first began seeing each other in June when they were spotted sharing a picnic in Los Angeles on Father's Day. From there, their summer romance turned serious with church dates, outings with Pratt's son, Jack, and dinners with Schwarzenegger's family — after all, Katherine's mom, Maria Shriver, is the one who reportedly set them up.
“They’re both serious about the relationship and hopeful for the future,” a source recently told People. “Chris doesn’t just date to date, and neither does Katherine. She’s very excited.”
According to Page Six, Chris spent "six figures" on the stunning sparkler.
Kathryn Money, Brilliant Earth‘s vice president of strategy and merchandising, told the publication, “Depending on the quality and specific characteristics of the centre diamond, we estimate the cost of the ring at approximately $150,000 to $250,000 or more."
Andrew Brown, President, WP Diamonds, told E! News, "The beautiful engagement looks like a 5-carat cushion set in a Harry Winston-style micro pavé halo."
Chris was previously married to actress Anna Faris for eight years before they split in 2017. They share a son together, five-year-old Jack, and have candidly spoken about co-parenting since their divorce.
During an episode of her podcast, Unqualified, Anna said: "Chris and I work really hard ‘cause we have Jack, that is sort of the long game idea and making sure Jack is really happy, which makes us really happy.
Faris also commented on Chris' Instagram announcement, "I am so happy for you both", which was picked up by Comments By Celebs.
Congrats to Chris and Katherine!
A version of this article originally appeared on InStyle US.