"And I thought about what's going on at this time and wanted to give something of extreme value in support of our health care workers. So I thought it would be good to give this ring, our fifth Super Bowl win because it showed how we came back."
Kraft says he'll hand-deliver the ring to the auction's highest bidder in his personal trophy room ... and says if the winner is out of state, he'll send the team jet to pick them up!
That's not all ... RK says the trip will come with a personal tour of the Pats facilities -- and maybe even a few meals with the 78-year-old!!
Opening bid started at $75,000 ... but it's already reached $330k -- and could break a million by the time it ends later this month!!