Floyd Mayweather took yet another victory lap on Saturday stemming from his unanimous welterweight title win over Manny Pacquiao early last month.

The New York Post reports "Money Mayweather" hit up Manhattan's famed Diamond District, where he dropped a cool $500,000 on jewelry, including watches, diamonds and gold chains.

Hailed by many as the world's richest athlete, the 38-year-old Mayweather, who earned an estimated $200 million from the Pacman fight alone, came out toting a briefcase full of diamond-encrusted watches and what the newspaper described as a "mysterious bag."

His first stop was at the small kiosk Flawless on the corner of Sixth Avenue and 47th street, where he instantly plunked down "hundreds of thousands of dollars" for watches and other trinkets. The Post adds Mayweather has frequently patronized the establishment, making new purchases and bringing in "old stuff that he'll have upgraded or downgraded for himself or someone he's with."

From there, it was on to Pristine Jewelers NYC, where the champ reportedly pulled out a handwritten shopping list that included a Cuban-link yellow-gold necklace for $35,000 and a diamond chain for $55,000.

Although much of the Diamond District is typically closed on Saturdays, merchants had no problem opening their shops for Mayweather, who could be heard imploring them, "Money never sleeps."

As he walked away, Mayweather was also heard sharing with anyone who would listen, "I love the whole world."

Mayweather bested Pacquiao in Las Vegas on May 2, before a star-studded crowd of more than 16,000 at the MGM Grand Garden Arena. The win improved Mayweather's career record to an unblemished 48-0 and further solidified his claim as one of the best pound-for-pound boxers of all time.

Before the bout, Mayweather candidly shared with reporters, "I never wanted to win a fight more in my life."