Ashton Kutcher is getting ready to propose to his girlfriends Mila Kunis for a $2.9million worth engagement ring.

According to The Irish Independent Woman, Kutcher is sealing a diamond ring for Kunis for $5million dollars. The diamond ring was designed by him.

A source told the Irish paper that Kutcher will propose with Mila. The rumored proposal will happen soon with his self-custom diamond ring.

"He's asked designer Arpita Navlakha to create an 18-carat gold ring set among 25 rose-cut pink diamonds," said the source.

The couple started their romance early 2012, and was just confirmed last year. They have known each other for a long time since they worked together at "That 70's Show" .

Rumors over Kutcher's plan of proposing to Kunis had been circulating since last year. Reports say that Ashton had already talked with Mila's father about the engagement proposal and the actress father did not give a second thought.

"Ashton is planning on proposing to Mila very soon. He asked her dad, Mark, for his permission at her brother's wedding in December and has ordered a rare diamond to make the ring," a source in "Closer" magazine reported.

However, Mila could not post her answer until Ahston's divorce with Ashton's ex-wife Demi was finalized.

Ashton and Demi's six years of marriage did not go well and end up in a divorce.

Rumors spread, citing reasons for their divorce including age gap but the two had been tight-lip.

With months of talks and negotiations, the two had reached their settlement last Oct.30.  Ashton filed the divorce where he cited "irreconcilable differences" as the reason for their split up on December 2012.

There are rumors circling that Ashton was already dating Mila that time.