Hollywood, CA 90028

Vince Vaughn proposed to his girlfriend, 29-year-old real estate agent Kyla Weber, with a four-carat diamond engagement ring.  Vaughn has kept mum about the romance, opting to keep this relationship away from the tabloids.  (His high-profile year-long relationship with Jennifer Aniston – one that did not result in engagement ring – made for weekly tabloid fodder.)

Vaughn, 38, was introduced in to Weber in May by a mutual friend.  Since then, the two have been inseparable and have been spotted holding hands at restaurants in Los Angeles and Chicago. 

The engagement ring speculation started when Weber flew out to meet Vaughn`s parents in Chicago, and was further fueled when one of Vaughn`s friends told the press that Vaughn was shopping for diamond engagement rings.

Last week, Weber`s father confirmed the engagement, saying that Vaughn proposed on Valentine`s Day with a four-carat diamond engagement ring worth $125,000.  Weber said yes.

Webber, who had been in living in Calgary, has recently moved into Vaughn`s Hollywood home.  No word on a wedding date.