Dwayne Haskins may not have Super Bowl bling yet ... but his now-fiancee sure has something close to it -- 'cause the NFL QB proposed to her this weekend with a HUGE diamond ring!!!
The Steelers quarterback shared footage of the proposal on Sunday ... and it all seemed like a very sweet time.
Haskins, his GF, Kalabrya, and family and friends were out partying at TAO restaurant in Las Vegas ... when the former NFL first-round draft pick got down on one knee.