It looks like this Hollywood couple are engaged!

If this big sparkler is anything to go by, Charlize Theron and Sean Penn have gotten engaged!

Charlize was spotted with this humongous diamond on her ring finger, sparking rumours they have made it official.

The couple have been dating since the start of this year.

Charlize is a mum to Jackson, who she adopted back in 2012. Sean has been seen spending a lot of time with the adorable little boy and his mum since they made their relationship official.