Kate Bosworth and Justin Long are engaged

Kate Bosworth and Justin Long are reportedly engaged, a source has claimed.

After the Vanity Fair Oscars after-party on Sunday (12 March), the Jeepers Creepers actor, 44, who donned a dark suit, was pictured alongside Bosworth, 40, in a black and cream dress.

Speculation began when Bosworth was seen wearing a big fat diamond on her ring finger at the Wallis Annenberg Centre for the Performing Arts in Beverly Hills.

REUTERS / Alamy Stock Photo

First rumoured to be dating in 2021, 'things quickly got serious' after Bosworth announced that she and her former husband of eight years Michael Polish were calling it quits.

She filed for divorce on July 15.

Despite initially being relatively private about their relationship, the pair have been sharing their fair share of snaps on Insta - and speculation has reached new heights after the Blue Crush actor was pictured wearing a ring on that finger.

Instagram/@katebosworth

It now seems that the couple have gone that one step further, as a source told ET: "They are both thrilled, and their loved ones are incredibly happy for them.

"They make an amazing couple and they're so excited."

Tyla has contacted the representatives of Kate Bosworth and Justin Long for comment.

In May last year, another source told the publication: "They both went into this relationship without any expectations or pressure - it was just fun and easy - but things quickly got serious.

"Justin used to live in New York and is loving taking Kate to some of his old favourite places in the East Village."

A week after they were spotted in New York, Long finally named dropped his GF on the Chelsea Handler's podcast, Dear Chelsea, saying: "I've never had anything like this before."

Host Handler then asked, "Am I allowed to say her name?"

To which Long replied: "Yeah, yeah, yes!"

Instagram/@katebosworth

"I love how open you are with your happiness and your joy," Long added.

"But there's something about it, for me, that I feel like I need to protect and keep sacred because it feels sacred."

After a few days - the couple made the most important announcement of all when they went Instagram official.

While Long shared a series travel selfies on the gram, Bosworth commented: "I'm the luckiest. 🍀✨😘."

Later celebrating Long's 44th Birthday, his girlfriend wrote a heartfelt message to her man.

"You were born today and the world lit up brighter than it had known and years later you met a girl who’s life was disassembled / rearranged but you were patient and with time she fell in love now she has a glow (one that was forgotten long ago) she is so grateful *more than you’ll ever know 💛 Happy Birthday @justinlong you make me smile so big my face hurts xx Thank you for creating peace in my heart since the day we met," she wrote.