1970-S Kennedy Half Dollar PCGS PR66 Struck on a 25C Planchet $7,475 And they’re still being made today.īut are any of them valuable? That’s what we’re going to find out! Follow us, as we search out the most valuable Kennedy half dollar ever sold … Most Valuable Kennedy Half Dollar 1. That was the position until 2021, when the coins were once more produced for general circulation.