Floyd Mayweather spent an ungodly amount of money on jewelry during an L.A. shopping spree last week ... dropping $5.3 MILLION on new chains and bracelets, TMZ Sports has learned.
The champ hit up jeweler to the stars Peter Marco at his shop in Beverly Hills on Nov. 14 ... and went HAM. Here's the breakdown:
-- One 30-carat pear-shaped, fancy yellow VVS ring for $2.3 MILLION.
-- One 3-4.5 ct. diamond bracelet for another $2.5 MILLION
-- One 2-pound yellow gold Cuban necklace and 3 watches for a combined $500k
Add all that up .