E! News has confirmed that the 33-year-old hubby-to-be popped the question during a vacation the duo took to Italy earlier this month, and the beautiful betrothed couple themselves talked up their pairing while making their post-engagement debut at the Puma Social Club LA party.

Also making its debut last night? Marie's "unique" engagement ring. A source told E! News the bauble is "tasteful, not enormous."

No wedding date has yet been set—probably because, according to a source, the couple so far has "no idea" when they may tie the knot.

"I always dreamed of finding someone who is beautiful and sweet, equal parts," Manganiello told E! News about his relationship just before embarking on his life-changing European adventure. "And I did. From there she's just unbelievably understanding and compassionate and patient from all the craziness that comes from this job and lifestyle."

Sounds like a man who knew what he wanted before he boarded that plane. Not that he was letting on…too much.

"I'm going to eat myself through Greece and Italy," he told E! News last month. "I've never been to Europe so I'm going to eat and have fun."

Emphasis on the fun, from the sounds of it.

"My first time in Italy was UNBELIEVABLE!" Manganiello tweeted upon his return. "There are no words…"

Except maybe "I do?"

—Reporting by Marc Malkin