Hollywood actress Scarlett Johansson is reportedly engaged to her French journalist boyfriend.

"The Avengers" star is in a relationship with Romain Duraic for less than a year, nine months to be exact. The couple is already wrapped up in a whirlwind engagement.

A source confirmed to People magazine that, "they're engaged and very happy." However, representatives of the blonde bombshell declined to offer comments on the rumours. The actress has not confirmed the rumours.

An insider detailed that Duraic popped the question a month ago and presented ScarJo with a vintage Art Deco ring. Scarlett was seen wearing the diamond ring while promoting her latest sci-fi film "Under the Skin" in Italy this week. Her film was shown at the Venice International Film Festival where the public spotted her latest bling.

This is not the first time that Scarlett sparked rumours of her alleged engagement. In July, she was seen wearing a fancy piece of jewelry. It was a gold ring embedded with ruby stones that immediately started the whispers and hearsays. However, a source explained that it is simply a piece of jewelry owned by the actress.

The 28-year-old actress was thinking of settling down again and having kids but she is currently savouring the final moments of her singlehood.

"Eventually I want to have a family, and that would be my focus, but right now I'm having fun with it," she admitted to Harper's Bazaar.

"There have been times in my career where I've struggled to find... I was stuck for a while. It was more difficult, maybe, to find the right thing to do. Now I'm enjoying a really productive, creative period," ScarJo quickly added.

Scarlett was formerly married to actor Ryan Reynolds and the couple stepped out in a quiet divorce in 2011. Reynolds is now happily married with "Gossip Girl" star Blake Lively.