Nick Jonas' rumored fiancee, Priyanka Chopra, seems to have just put the speculation to bed -- 'cause she's got a big rock on THAT finger ... which may or may not have been meant to be seen publicly.
Actress Raveena Tandon posted a shot of her with Priyanka Tuesday with Priyanka's left arm wrapped around her neck -- placing her ring finger on full display.
Yep, that's an engagement ring alright ... and it looks like the youngest Jo Bro shelled out big time based on how big it is. Now, we're not jewelers or anything -- but this bling doesn't appear to be as elaborate as the one Joe got for Sophie late last year.
Whatevs though. Dude put a ring on it -- and that means Priyanka's officially off the market. Sorry, fellas.