Neither Vergara, 42, nor Manganiello, 38, have commented on the reports, and reps for both stars have not responded to requests for comment. However, Vergara was recently photographed wearing a huge diamond ring on her left hand while on vacation in Hawaii with her beau.
"Happy happy bday to my love and best friend," she captioned a photo of them embracing in Instagram a few days ago. "To the one that makes me laugh like crazy! have a healthy wonderful year babe!!!"