Bling!

2 Chainz and Flo Rida squared off at this weekend's BET Awards ... and one of them won by a neck.

Both showed up with giant jewel-encrusted chains ... it's debatable who's got the bigger and badder bling ... but both look like they could cover a kid's college tuition.

One thing's for sure ... sometimes one is enough ... even for 2 Chainz.

New York Giants linebacker J.T. Thomas believes in the "Treat Yo Self" mentality ... because after he inked his new $12 MILLION contract ... he picked up $55k in brand new bling ... TMZ Sports has learned.

Thomas hit up Avianne and Co. in NYC -- and scored himself an 18 karat gold Cuban link chain for $35k.

And because he didn't want that chain to get lonely, he got a 2nd piece ... a 25 karat ruby, surrounded by diamonds ... which ran him another $20k.

Tom Haverford would be proud ...

Diamond studded King Tut is out, diamond studded Anubis is wayyy in -- so says NBA star Trevor Ariza ... who just dropped $12,000 on a brand new jackal-headed gold piece ... TMZ Sports has learned.

The Rockets star hit up Johnny's Custom Jewelry in Houston looking for something cool -- and according to the brother of the owner, Zo, asked for a piece with an ancient Egyptian theme.

But Zo says Ariza was tired of seeing King Tut everywhere ... and wanted something a little more original. So he crafted an 18-karat design of Anubis -- a god who ushered souls into the afterlife.

Bonus Egyptian Joke -- What's a mummy's favorite kind of music? Wrap.

Iggy Azalea is officially on her way to becoming Mrs. Swaggy P-- her NBA star boyfriend Nick Young popped the question ... and she said, "Yes!"

It all went down at Nick Young's 30th birthday party Monday night -- with the L.A. Lakers star getting down on one knee and busting out a fat 10 carat yellow diamond ring.

The two started dating back in 2013 -- for their first date, Nick took her to a Target to go shoppping.

From there, they hit it off quickly -- with Nick once taking her home from a club and bragging, "What I'm about to do with this shouldn't be legal!"

Soooo ... congrats!!!

John Mayer just got his clock cleaned in a lawsuit in which he claimed he was defrauded by a watch dealer ... because John has not only dismissed his suit ... he now says his claims were false.

TMZ has obtained a joint statement between Mayer and Robert Maron, who sold the singer more than $600,000 worth of Rolex watches back in 2007. Mayer -- a big-time watch collector -- claimed the watches had counterfeit parts and Maron knew it.

Now we've learned Mayer has dismissed his lawsuit and no money or property changed hands. What's more, their joint statement says, "Two years of research restored John Mayer's belief that Bob Maron is an expert on Rolex watches, and confirmed that Bob Maron never sold him a counterfeit watch."

Maron's lawyer, Eric George, said early on he'd beat Mayer in court, but the dismissal is pretty much the same as a jury victory for Maron.

BTW ... Maron is best buds with Charlie Sheen and even had a co-executive producer title on "Anger Management."

Floyd Mayweather is flossin' a ridiculously rare man-bag ... and it costs more than your CAR!!!!

The boxer just touched down in Georgia this morning ... flaunting one of his favorite expensive purchases -- a diamond Hermès HAC 50 bag made out of crocodile skin.

We spoke to someone from Hermès who told us the bag isn't being sold in stores -- and therefore, it MUST be a custom job (Pharrell had a custom Hermès bag made in 2007).

So, we went to the The Money Team looking for answers ... and one of Floyd's top TMT guys told us Floyd paid around $150k for the bag, which is accented with 245 diamonds on the metal hardware.

It's a drop in the bucket for Floyd who claimed he made around $200 million for the Pacquiao fight.

And he's not done spending yet ... Floyd tweeted to his people in Atlanta -- "Anyone know what time the stores open up? I need to pick up a few items for the [Atlanta Hawks] game tonight."

Hip-hop honcho J. Prince nearly came up snake eyes in Las Vegas -- losing a $75,000 diamond encrusted watch in the airport -- until a stranger came forward to save the day ... and then Prince made his.

Sources connected to the Rap-A-Lot Records chief -- and infamous Drake defender -- tell us he had just gone through TSA Tuesday night when he noticed his iced out Hublot was missing.

With $75k on the line ... you better believe Prince's crew immediately scoured the terminal - and while they were searching, we're told a dude walked up and whipped out the watch. Witnesses say Prince's security surrounded him to confirm it was the right one, and that's when the awesomeness happened.

In the video ... you see Prince walk up to the good Samaritan and hand him something. We're told he reached into his pocket for some loose change to reward the guy -- and by loose change we mean ... $500!!

So grateful. So baller. Jewelry recovery is really becoming J. Prince's thing -- right, Stevie Francis?

Here it is ... the $1 million emerald-studded WBC championship belt that Floyd Mayweather and Manny Pacquiao will be fighting for on May 2nd ... in addition to their $100-million + paychecks!

TMZ Sports broke the story ... the World Boxing Council commissioned the belt when the fight was announced .. and adorned it with 3,000 real miniature emeralds.

The belt was revealed at a WBC event in Mexico -- and will make its way to Vegas this week ... escorted by a private security team.

The MILLION DOLLAR championship belt that will be awarded to the winner of Mayweather vs. Pacquiao has its own private security detail that will escort it from Mexico to Vegas ... TMZ Sports has learned.

A rep for the World Boxing Council tells us ... the belt -- which is encrusted with more than 3,000 real miniature emeralds -- will be unveiled on Monday in Mexico ... at WBC headquarters.

After it makes its public debut, the belt will travel to the MGM Grand -- escorted by the President of the World Boxing Council and 2 private security guards.

Ultimately, the belt will be handed over to MGM officials -- who will safeguard the belt in a special case until the night of the fight.

It looks like an engagement ring ... she's flaunting it like an engagement ring ... but the rock on Erin Andrews' finger is NOT an engagement ring.

Andrews has been dating L.A. Kings superstar Jarret Stoll for a while ... after she posted a pic with that huge diamond before last night's "Dancing with the Stars" premiere, there was buzz that he finally popped the question.

Turns out ... the ring wasn't from Stoll -- it was from wardrobe ... specifically so Erin would look "blinged out" for the big show.

But the ring was no cheap prop -- according to E!, it was a special asscher-cut diamond ring that weighed in at 2.01 carats with 22 baguette diamonds and 88 other microset diamonds.

Floyd and Manny are fighting for more green than they thought on May 2nd ... 'cause TMZ Sports has the first look at the WBC belt the two men will be vying for ... and it's as emerald as Oz.

The World Boxing Council didn't just want any old championship belt to be handed out to the winner of this historic bout ... so they decided to commission a special prize for the victor.

Two belts were made ... an "onyx" version and an "emerald" version -- and a fan vote on the WBC website last week determined which belt will be delivered to the winner.

It was a tight contest but emerald took it with 53% of the vote ... although both belts are said to be worth nearly $1 MILLION ... so there was no real loser.

Except of course the guy that gets his face knocked off on the 2nd.

Actually he kinda wins too ($100 million bucks).

Soccer star Sydney Leroux made a case for wife of the year before she was even married ... designing a $20k wedding band for her hubby (lucky bastard) ... and TMZ Sports has photos of the bling.

Sydney tied the knot with men's footie stud Dom Dwyer earlier this year and started forever off right by spending $20k with L.A. jeweler to the stars Big O to create a platinum and diamond monster.

The ring is14mm wide and features 97 baguillion and round brilliant diamonds that are actually cut to mimic the octagons on the side of a soccer ball.

Big O tells us that Sydney was very involved in the design -- and made it clear from the start she wanted more than the traditional men's wedding band.

No word on what Dom is getting Sydney for her birthday this year but we know this...

Steve Francis doesn't just have the Sauce Twinz to thank for the return of his chain -- it was ultimately engineered by J. Prince ... one of the most powerful men in hip hop, TMZ Sports has learned.

We broke the story ... the NBA legend was chain snatched by some dumbass at a Sauce Twinz concert in Houston last weekend.

Now, we've learned ... Francis has some powerful friends in Houston -- including Prince, who not only runs Rap-A-Lot Records, but is known in the rap community as a guy you just don't mess with.

Also, the Sauce Twinz are managed by YEMG ... the management group owned by Prince's son, Jas.

Sources connected to Prince tell us once he learned the chain went missing ... he put out word, "The chain must be returned."

That's when the Twinz and their pals went into "super recovery mode" to track down the culprit.

And surprise surprise, the chain turned up a short time later ... and will be reunited with Francis.

BTW -- you may remember J. Prince as the guy who issued a "courtesy call" to all of Drake's enemies including Diddy and Suge Knight ... warning them to back off Drizzy, another Prince associate.

Bottom line -- it's good to know J. Prince.

NBA superstar Eric Bledsoe gave himself a "Treat Yo'self" moment after signing his $70 million contract with the PHX Suns ... dropping thousands of dollars on gold and diamond grillz!

TMZ Sports has learned the 25-year-old point guard recently hit up Thizzelles Grillz -- a high-end grill maker in NYC -- and dropped $5,000 on two sick pieces ... one for himself, one for his brother.

The grillz -- which cover six bottom teeth -- are made of 18 karat gold ... and are encrusted with 6 high-quality diamonds.

The process is complicated ... take an impression, make a wax mold, fill it with gold or platinum, drill holes, screw in diamonds. Grill done.

Bledsoe isn't the only baller joining the grill movement ... Thizzelles owner Scott Spira says he's hooked up several athletes including Broncos cornerback Omar Bolden and Browns guard Shawn Lauvao.

And these things ain't cheap ... "Depending on the metal and diamonds the grillz can run up to 100K."

Say chee$e.

Talk about putting your money where your mouth is ... pro athletes are now spending THOUSANDS of dollars to pimp out their mouthpieces with diamonds and gold ... TMZ Sports has learned.

In fact, NBA star Nate Robinson is part of the "pimp your mouthpiece" movement -- and recently picked up a $5,300 customized mouthguard that's chock-full of real gold foil.

The man behind the piece is Dr. Michael Wright of "The WrightGuard" ... who tells us high-end custom protection is becoming a major trend with athletes in a variety of sports ... from hoops to football and boxing.

In fact, Wright says he was recently approached by a NFL star who's playing in the Super Bowl (Wright says he can't reveal the player's ID) ... who requested a mouthpiece with some massive diamonds flanking the front.

"The Super Bowl athlete brought his own diamonds," Wright says ... "I don't know how many carats, but they were huge."

Wright says his mouthpieces are just as functional as they are flossy -- and says he has a special 3-layer process to make sure the gold, silver and/or diamonds are sealed in a way that it won't harm the user.

Wright says he's gotten some crazy requests from some of his athletes -- some people want team logos others want their Twitter handles -- and says team reps sometimes oversee the process to make sure the mouthpiece complies with uniform standards.

With so much customization at the pro level (mouthguards, cleats, etc) ... keep an eye out for the platinum diamond-encrusted jockstrap in the future.

"Modern Family" star Sofia Vergara is engaged to marry one of the hottest guys in town ... so why is she hiding her massive engagement ring?

"True Blood" star Joe Manganiello popped the question over the holiday weekend after just six months of dating (and Sofia only broke up with her other fiancé less than two months before that).

Vergara was spotted at the airport with her ring turned around so nobody could see it.

The ring is rumored to be at least 10 carats ... who's gonna miss it?