Bling!

Alex Rodriguez had HALF A MILLION DOLLARS worth of stuff stolen from his rental car while he was in San Francisco broadcasting a Giants-Phillies game ... TMZ Sports has confirmed.

Law enforcement sources tell us the MLB legend -- who was in town for his ESPN gig as a baseball color commentator -- had his rented SUV broken into just a few blocks from Oracle Park on Sunday.

We're told the burglary happened around 10 PM ... and the thieves made off with $500,000 worth of electronics and jewelry.

Rodriguez had been at the stadium nearly the entire day ... he and his ESPN crew called the Giants' 9-6 win over Philadelphia on "Sunday Night Baseball."

Law enforcement sources tell us they've made the case a high priority ... with investigators working overnight to collect evidence.

We've reached out to Rodriguez for comment ... but so far, no word back yet.

Kylie Jenner is riding into 22 with a firm grip on her man -- she and Travis Scott did some tandem jet skiing as part of her outrageous birthday celebration at sea.

Kylie's moved the party into the Mediterranean Saturday -- her actual birthday -- off the coast of Italy. She and her baby daddy are cruising around with her closest GFs on their personal watercraft, as opposed to their OTHER "watercraft" ... the $250 million megayacht, "Tranquility."

And, check out the the birthday girl's sea-faring fashion sense -- an amazing technicolor swimsuit that definitely stands out ... as she always does.

The celebration's been going since the early hours of Saturday aboard their ship. KJ showed off one of her fabulous gifts from Trav ... a diamond chain with a massive pendant fashioned after her Kylie Lip Kit logo -- y'know that thing that made her so stinkin' rich.

It's a pretty sick piece, complete with liquid dripping off the lips ... all made of diamonds, of course.

Hey, we can't all be billionaires at 22, floating off the coast of Italy on a megayacht that costs $1.2 million per week to charter -- but at least we can all share in Kylie's fun.

Gigi Hadid has a damn good reason to swear off Mykonos ... the vacay pad where she and her sisters, including Bella, were staying was destroyed by burglars who made off with nearly all their valuables.

Sources with direct knowledge tell TMZ ... Gigi and co. got home one night last week and found the crib ransacked. We're told everyone's stuff was scattered throughout. Well, not the expensive stuff ... since items like jewelry, clothing, purses and sunglasses were all jacked.

We're told they called police, but felt the authorities didn't make it a priority. The girls suspect an inside job, because house staff had access to the house.

The scary incident prompted the group to hightail it outta the island and cut the trip short. We're told they chartered a private plane and headed back home. They had been in Greece celebrating their big sister Alana's bday.

Gigi was definitely pissed, saying ... "Don't let insta fool u. Got robbed. Never going back lol." Not exactly a ringing endorsement for the Greek tourism board.

We got the models' dad, Mohamed Hadid, Friday at Il Pastaio in Bev Hills. As you can imagine, he's just happy his girls are safe.

Christine Quinn from the hit Netflix show "Selling Sunset" had a rude homecoming from a trip abroad -- someone got into her home and made off with six-figures worth of pricey jewelry.

Sources close to the situation tell TMZ ... Christine returned to her Bev Hills pad a few days ago and noticed her entire jewelry collection -- including expensive watches -- had been swiped from her safe.

We're told cops have little to go on, but here's what Christine knows for sure -- the suspect made off with more than $120,000 worth of her stuff!!! We're also told the only person who was supposed to have access to Christine's crib was the housekeeper, and there was no sign of forced entry.

LAPD's now investigating, but so far, there are no suspects.

Christine's bummer news comes on the heels of some great news for one of her "Selling Sunset" costars. As we told you ... Heather Rae Young made headlines when she was seen locking lips with "Flip or Flop" host Tarek El Moussa.

Lil Uzi Vert broke the bank celebrating 25 years of life ... throwing a lavish birthday party in NYC and dropping over a million bucks for a luxury car that used to belong to Floyd Mayweather!!!

The Philly rapper pulled out all the stops Wednesday night for his bday bash ... partying the night away with celeb friends and tons of smokin' hot babes at Magic Hour Rooftop Bar & Lounge.

Jordyn Woods, Wale, Gunna, Casanova, Bernice Burgos, Pop Smoke, Shiggy, DJ Clue and a bunch of others turned up ... and Uzi was literally looking like a kid in a candy store, because guests chowed down on candy sushi, cotton candy, popcorn and pretzels.

Uzi rolled up to his party in style ... hopping out of Floyd's former Bugatti. We're told Uzi dropped $1.7 million on Mayweather's whip, and he threw down another $20,000 to get the car rush-delivered from Los Angeles.

Lil Uzi bought the 2012 Bugatti Grand Sport from celebrity car broker RD Whittington ... and we're told it's the same car Floyd got before his 2017 superfight against Conor McGregor.

The Bugatti looks a little different now ... thanks to some sweet custom work by CarEffex, which tricked it out with a $10k custom wrap.

BTW ... when Floyd first copped the Bugatti, he threw down $3.3 MILLION. So, Uzi got a steal.

Back to the party ... Lil Uzi Vert guzzled champagne and there were Uzi-themed cocktails, courtesy of D'usse. He cut into a birthday cake decorated in diamonds and dollar bills -- the party theme was "Dripping Green & Diamonds."

Speaking of diamonds ... as you can see in the pics, Uzi was rocking tons of new ice from celeb jeweler Eliantte. Gotta have that bday bling!

IBF welterweight champ Errol Spence Jr. is coming after Floyd Mayweather's title as most iced-out fighter alive ... 'cause the boxing star just copped an incredible "Man Down" chain for $400k!

TMZ Sports has learned ... the undefeated stud wanted to immortalize his signature slogan in diamonds and spared no expenses to get the job done.

Spence hit up Iceman Nick to make the custom piece ... and the specs are incredible:

The pendant (worth around $150k on its own) is made with 55 carats of VS1 diamonds on white and rose gold while the infinity link Cuban chain (valued around $250k) has 60 carats of VS1 diamonds on 1000 grams of rose gold.

Add that all up and you get a whoppin' $400k!!

The piece is insane ... and Nick agrees, saying, "In 20 years of making custom jewelry for celebrities, this may be my most beautiful piece."

You've probably seen Nick's work before. He's worked with huge names from 6ix9ine to Lonzo Ball to French Montana.

A World Cup trophy wasn't enough bling for Ashlyn Harris ... the USWNT stud decided to get iced out to celebrate the championship too -- coppin' $40,000 worth of diamonds!!!

TMZ Sports has learned the goalkeeper hit up Greg Yuna at their NYC Diamond District store after winning the World Cup earlier this month to get some drip.

We're told Ashlyn came away with two pieces -- a gold diamond Cuban necklace and a matching bracelet -- and they're AWESOME!!!

The necklace has 200 grams of gold with 25ct diamonds. In the bracelet, we're told there's 100 grams of gold and 15ct diamonds.

All total, the bill was $40k ... but, don't worry, Ashlyn can afford it -- reports say she earned more than $100K for the World Cup run ... and got $23,000 more kicked in thanks to Secret's donation!!!

If you blinked, you might've missed the fact Justin Bieber's got himself a new set of diamond whites in the form of a grill ... and it costs a fortune.

The Biebs showed off his new bling Tuesday on Instagram, but only barely. You gotta look close, but he's got the grill laid out over the lower half of his teeth -- he left his upper deck untouched, but that bottom row sure is shiny when you see it up and close.

JB was a bit modest in showing it off, but we got you covered!!!

The grill was commissioned by an L.A.-area jeweler who goes by Gold Teeth God -- with a name like that, he's gotta be pretty good, right?!? He is, 'cause Justin gave him a buzz.

We're told JB asked for the grill two weeks ago, and just got it delivered this week. It's called an "Invisible Set Princess Cut Diamond Grill" ... which means the teeth aren't individually outlined and appear flush. It ain't cheap -- it runs about $50,000.

It comes fully loaded too -- we're told the grill was designed to cover 8 teeth with white gold and white Vs1 diamonds at a clip of 7.65 carats total.

This is at least Bieber's second grill -- you'll recall ... he got an all-pink one made for him a couple years back that ran a clean $15k (top and bottom too at the time).

Toni Braxton took an oath to tell the truth, the whole truth and nothing but the truth Thursday, and told a jury she's heartbroken that the guy on trial stole her engagement ring and other precious jewelry.

A guy who works for an airplane cleaning service is on trial for allegedly rifling through a piece of carry-on luggage she forgot after landing in L.A. We're told three other employees from the cleaning service say they were on the Delta jet and saw the defendant pilfer Toni's $1 million engagement ring, 4 super expensive watches -- including 2 Rolex's and a Cartier -- and 2 pairs of vintage earrings. The grand total of the theft -- $2.5 MILLION.

The bad news -- the jewelry is still missing. Birdman gave Toni the ring when he proposed to her in February 2018. As for why the ring wasn't on her finger during the JFK to LAX flight ... because her fingers tend to swell when she flies as a result of a medical condition -- lupus.

German soccer superstar Jerome Boateng is on a mission to be the most iced out player in the game ... going on a $350k watch and chain jewelry spree!!!

TMZ Sports has learned ... the 30-year-old Bayern Munich defender wanted to treat himself with some shiny new gifts ... hitting up Gabriel the Jeweler for the job.

We're told Boateng copped an Audemars Piguet watch with a custom VVS diamond bezel decked out with 30 carat stones ... and a 1 kilo Cuban link choker with 120 carat VVS diamonds.

FYI -- Gabriel is the go-to guy for guys who play the other football as well -- like Antonio Brown, Odell Beckham and Amari Cooper.

He got the G.O.A.T. rings ... now Antonio Brown is paying homage to the Greatest of All Time, Muhammad Ali, with an iced-out butterfly and bee chain worth $250k!!

TMZ Sports has learned -- the NFL superstar wanted to honor the legend and his AB nickname at the same time ... getting an insane bee with butterfly wings -- and his #84 jersey number on it.

We're told Brown went to his go-to guy, Gabriel the Jeweler, for the job ... hooking him up with the piece made with a combo of pear and baguette-shaped VVS and brilliant-cut diamonds, totaling 65 carats on the cuban chain and 50 carats on the pendent.

Of course ... Gabriel is the guy behind AB's G.O.A.T rings he copped earlier this year (along with pretty much all of Brown's bling) ... and has also worked with other superstars like Amari Cooper, Odell Beckham and Jalen Ramsey.

We're told this newest piece is valued at a QUARTER MILLION DOLLARS ... but don't worry, AB's in the middle of a 3-year, $50 million contract.

Kevin Love just copped a custom diamond Stone Cold Steve Austin pendant for his neck ... and the piece is AWESOME!!!

The Cavs superstar has been a huge fan of Austin 3:16 for years ... so he hit up Greg Yuna & Jason “J-FROST” Adams in NYC to get his love for the wrestler memorialized in a new chain.

We're told the drip -- which was made in the guys' shop in the Diamond District -- features 7ct VS D color stones and 14kt white gold.

All total -- we're told the ice cost around $15,000.

Of course, it's a small price to pay for Love -- who's a big wrestling buff -- 'cause the guy just inked a 4-year, $120 MILLION deal with Cleveland!!!

As for Stone Cold, he approves of the bling ... writing on his social media page, "Glass shattering across the universe."

Cardi B and Offset are making sure Kulture is one blinged-out baby ... spending a huge chunk of change on a super lavish present for their daughter's upcoming first birthday party.

Our sources tell us, Kulture is getting some serious bday bling when she turns 1 next month ... and we've got an early look at the extravagant piece of custom jewelry.

Check it out ... when Kulture celebrates her first birthday on July 10, she's gonna get this super sick piece from her parents, featuring characters from her favorite TV show, "Word Party."

We've learned Cardi commissioned celeb jeweler Eliantte for the project ... and the pendant and chain are made of diamonds, white gold and vibrantly colored enamel. Altogether, we're told Cardi dropped about $100,000 to keep Kulture ice cold.

Kulture's first birthday bash is gonna be one for the ages ... Cardi recently revealed she's pulling out all the stops, and spending a whopping $400k on the festivities!!!

The Super Bowl ring didn't happen ... but the engagement ring did!!

Los Angeles Rams head coach Sean McVay just proposed to his smokin' hot Ukrainian model girlfriend, Veronika Khomyn ... and (shocker!) she said YES!

The two have been on vacation in the French Riviera -- where the 33-year-old busted out a diamond ring the size of Veronika's knuckle and popped the question.

"Can't wait to call him my husband," Khomyn said.

Sean and 29-year-old Veronika started dating somewhere around 2011 ... when she was a student at George Mason University in Virginia and he was an assistant coach on the Washington Redskins.

Since then, the two have been super tight ... she moved out to L.A. with him when he took the job to coach the Rams. They live together in a home in the San Fernando Valley.

It's the most swaggy time of the year ... when the top NBA prospects in the game show off their style on the biggest days of their lives ... and these guys went all out in the name of FASHION!!!

Zion Williamson is rockin' an all-white suit -- just like LeBron James did at the 2003 Draft -- for when his name is called as the first pick ... with an open collar shirt ('cause ties are overrated).

To top off the look, Zion went with a blinged-out Rolex ... which is retails in the $45,000 range, but with all the bells and whistles, it's worth a LOT more.

RJ Barrett went the pink route ... donning a custom suit with Canadian flag lining and his "Maple Mamba" nickname stitched in it as well.

And just like his Duke teammate, Barrett iced out his wrist as well .. going with a fancy Cartier watch for good measure.

Bol Bol's Spidey senses are tingling ... 'cause the 7'2" center went with a black suit and bedazzled spider web print.

Other notable suits include Darius Garland (who was styled by Fear of God's Jerry Lorenzo) ... Jaxson Hayes with the red suit and Sideshow Bob chain ... and Nickeil Alexander's snakeskin-print suit.

Ex-Texas hoops star center Jaxson Hayes got himself a sick pre-draft gift that would make Homer Simpson proud ... immortalizing his "Sideshow Jax" nickname in diamonds with a Sideshow Bob chain!!!

TMZ Sports has learned ... the projected lottery pick wanted to treat himself before the biggest day of his life ... hitting up Al the Jeweler of LaBelle Jewelry in NJ to hook him up with a chain of his Simpsons character Doppelgänger.

Al -- the go-to jeweler for huge stars like Jarvis Landry and Stefon Diggs -- tells us the one-of-a-kind piece is made of VS diamonds and rubies ... and it took 1,000 total stones to make.

No word on how much Hayes dropped for the piece ... but we're told this kinda work would run around $25k.

We're told Hayes LOVES the piece ... and there's a great chance he might even wear it when his name is called at the draft on Thursday.