FIRST PHOTOS - Jennifer Aniston Wearing Diamond Ring After European Vacation With Justin Theroux

Fresh from their romantic European vacation, Jennifer Aniston flashed a huge diamond engagement ring on her right finger as she happily made her way through the LAX airport with beau Justin Theroux, on Monday afternoon.

The happy pair of one-year already wear matching gold "Jennifer" and "Justin" rings on their respective left ring fingers, but the huge rock Jen showed off appears to be brand new. She may be wearing it on her right finger just to trick us!

It's been reported that the couple were in Europe to scout out potential wedding locations in France, so Justin may have popped the question while they were on their trip!