Talk about bling! Kevin Costner’s ex-wife Christine Baumgartner’s engagement ring was hard to miss when she rocked the blinding diamond while out with her fiancé, Josh Connor, for the first time since the proposal.

Kevin Costner ’s ex-wife Christine Baumgartner and her fiancé, Josh Connor, are moving on — and moving out! — of their individual homes in California.

"Her friends and family have been incredibly supportive of her relationship with Josh," a source tells PEOPLE of Kevin Costner's ex-wife