Jake Paul Gets $500k 'Most Valuable Boxer' Belt With Rolex, Birkin Bag Attached

Jake Paul just got an incredibly expensive early Christmas gift -- a $500k championship belt decked out with a Rolex, Cartier watch and a Birkin bag attached to it!!!

The Problem Child showed off the "Most Valuable Boxer" belt at his presser with Tyron Woodley on Thursday -- saying it's a one-of-a-kind and designed by artist Alec Monopoly.

It came out lookin' like money -- literally -- the thing has two wildly valuable watches sewn into the strap of the belt on one side.

The Hermes Birkin bag -- which comes with a starting price of around $40k -- is stitched in on the other strap.

Altogether, Jake says the piece cost $500k.

"Thanks to the kind-hearted CEO of @mostvaluablepromotions for the belt," Paul said, "It’s hand-painted by one of the greatest artists of our generation."

There's more -- Jake and Tyron went at it at the presser Thursday ... with the YouTube superstar coming close to saying he was going to eat Woodley's ass.

The UFC champ added he's gonna earn the $500k knockout bonus in the fight ... and then invest it all into cryptocurrency.

Jake -- and his belt -- will be facing off against Woodley on Saturday.