Sienna Miller Sparks Engagement Rumors with New Ring

It's little surprise that is smiling warmly – she has a sparkling new diamond on her ring finger.

The actress, who recently gave birth to her third child, appears to have .

It is the fourth time Ms Miller, 44, has become a fiancée, although she has never yet been married.

She showed off her eye-catching jewel on a trip to Barcelona, where she was seen leaving a party only a week after giving birth.

Friends of the couple say former model Mr Green, 29, has long made known his desire to marry Sienna, despite being 15 years her junior. 

One said: 'Oli and Sienna are so ridiculously in love, they've got a lovely family and have such a giggle together.

'He knows what a catch Sienna is and wants to make her his wife. Hopefully it will be fourth time lucky and Sienna will make it to the aisle this time.'

Onlookers in the Spanish port city told how the actress 'couldn't stop smiling.'

One said: 'Sienna looked so happy, like she was walking on air. She didn't seem to care who saw the ring.'

Ms Miller gave birth in May, though she has yet to reveal the baby's sex or name. In 2023 she had a daughter.

The Layer Cake star also has a daughter named Marlowe from her relationship with ex-boyfriend Tom Sturridge, the actor.

Fans will be hoping this is fourth time lucky for Ms Miller, who was , to Sturridge in 2012 and to art gallery director Lucas Zwirner, whom she dated for a year and a half, in 2020.