Scarlett Johansson and Romain Dauriac have got engaged.

The 28-year-old actress, who was spotted wearing a huge diamond ring at the Venice International Film Festival this week, is ''very happy'' after her French journalist boyfriend of 10 months secretly proposed to her last month.

A source close to the couple confirmed the news to on Wednesday (04.09.13), saying: ''They're engaged and very happy.''

The 'Under the Skin' actress, who was previously married to Ryan Reynolds for two years until they divorced in 2011, began dating Romain in November after being introduced by mutual friends, just weeks after she split from her boyfriend of one year Nate Taylor.

The couple was previously rumoured to be engaged when the actress was photographed wearing a huge pear-cut diamond ring as she wandered around New York with Romain, 30, in February but her spokesperson poured cold water on the reports at the time.

A friend close to the actress also denied she was engaged in May, when she was spotted wearing another ring on her engagement finger and claimed it was ''simply a piece of jewellery''.

Scarlett previously insisted she was in no rush to get married again following her split from Ryan, who married former 'Gossip Girl' star Blake Lively last September, but admitted she liked the idea.

She said: ''I got married when I was young and it was incredibly romantic and I liked being married, actually.

''But it is different. It's hard to put into words. To me, being in a functioning relationship doesn't mean you have to be married.''