Seems Kyrie Irving is off the market ... because his girlfriend is flaunting a massive diamond on her ring finger just days after the NBA star us rumored to have popped the question.
The Brooklyn Nets superstar was out in NYC over the weekend -- but all eyes were on his lady friend, Golden, whose ring is bigger than her knuckle.
The paps congratulated Kyrie and Golden on their engagement ... and the couple didn't exactly deny it.
So, if our math is correct ... ring + PDA + engagement rumors = actual engagement (probably).