Scarlett Johansson is all set to tie the knot with fellow actor Ryan Reynolds.

According to a report in People magazine, the 31-year old actor, who is filming The Proposal with Sandra Bullock [Images], recently proposed to 23-year old Scarlett. The couple, however, have not set a wedding date.

Soon after the news of the engagement, Scarlett was seen sporting a ring at Monday night's Metropolitan Museum Costume Institute Gala in New York.

According to sources, Johansson was eager to 'show off her rock' (in the picture) with her Dolce & Gabbana gown.

Photograph: Getty Images