It's Official!: Ashton Kutcher and Mila Kunis Are Engaged!

A new report claims Ashton Kutcher and Mila Kunis are officially engaged. The news comes after weeks of speculation the Two and a Half Men star proposed to the brunette beauty. Mila, 30, was spotted shopping earlier today flashing a giant diamond ring on that finger. Known for keeping their relationship private, the duo have been flaunting their love for one another in public lately.

"I love you @kutcher78," the 30-year-old wrote on Instagram yesterday. The note was accompanied by a sweet photo of the pair smiling happily for the camera.

“It happened over the summer,” the insider tells the mag.

"His whole family had come out to California for Mila’s birthday [on Aug. 14], and he did it then.”

The handsome duo, who co-starred on the hit That 70s Show, revved up a romance in April 2012 -- seven months after Ashton and Demi Moore split up.E! News was the first to report about the engagement.