Bling!

What does Adrien Broner have in common with Chris Brown and Drake?

It pays to be friends with all three guys apparently ... 'cause Broner just laced his crew with the same Championship style rings that Drizzy and Breezy hit their teams with.

Broner hit up Avianne & Co in NYC -- jewelers to HUGE stars like Chris Brown and Future -- and commissioned championship rings for himself and his closest friends ... to commemorate winning a title in his 4th weight class.

Joe Avianne tells TMZ Sports each ring consisted of 60 grams of 14 karat yellow gold and 12 carats of flawless diamonds with "ABOUT BILLIONS" engraved on the side.

Final price tag for the whole haul ... $84k!!!!!

Sean Kingston's claims he was kidnapped in a jewelry dispute have fallen on deaf ears, because the LAPD is chalking it up to a simple business disagreement.

Law enforcement sources tell us, Kingston's story just doesn't ring true ... that he met a jeweler in downtown L.A. in the middle of the night to settle a dispute over a $185k watch. Kingston claims the jeweler and his goons took the watch, locked him in a car at gunpoint and drove off, eventually dumping him in the street.

Our sources say the story didn't make a whole lot of sense ... why would Sean be making business deals in the middle of the night in a desolate area? It seems unclear so cops are calling it a civil business dispute.

Frankly, the whole story is too confusing for words, so just let Raquel explain it you.

Floyd Mayweather really outdid himself this time ... dropping over $10 million on some new diamonds.

According to Floyd's rep, the giant ring alone is 50 carats and smaller necklace is made of 74 diamonds, each one being three carats each.

All told, Floyd's rep says the collection ran Floyd between $10-15 million.

Earlier this month, Floyd spent over a million bucks on a sick diamond watch while shopping in Dubai.

Floyd Mayweather still knows how to draw a crowd ... even in Dubai ... where fans streamed in from all over to catch a glimpse of the boxer during his $1 MILLION shopping spree at the Dubai Mall.

Check out the footage ... you can see crowds gathering all over the mall just to look at Mayweather -- who bought a crazy $1.1 million Hublot diamond watch during the shopping trip.

Kate Middleton will be the last person to complain about hand-me-downs from her mother-in-law -- she stepped out in a Princess Diana classic ... her fav pearl and diamond tiara.

The tiara's a big deal -- it's called the Lover's Knot Tiara and Queen Elizabeth gave it to Di on her wedding day in 1981.

Kate wore the headpiece Tuesday to the Diplomatic Reception at Buckingham Palace ... the first time anyone's seen it in public since Diana's death.

Apparently, you don't gotta play a sport to rock a championship ring -- just ask Chris Brown ... who just dropped $100,000 to make his crew look like the '96 Bulls.

Brown hit up Elliott Eliantte of Eliantte and Co. in NYC and commissioned 15 rings for himself and his best friends ... a crew that calls themselves OHB (Original Hood Bosses).

Elliott tells TMZ Sports ... each ring is made with 50 to 60 grams of 14 karat gold ... and sports roughly 3 carats worth of diamonds.

But Brown put more ice on his ring -- the boss ring -- that one has between 10 and 12 carats worth of diamonds.

We're told Brown and the group are getting their rings today.

Merry Xmas.

Nice rock.

Here's Hannah Davis at the CMAs Wednesday night ... showing off the insane diamond engagement ring she got from her fiance Derek Jeter.

Rick Ross is the boss of the insanely expensive engagement ring he bought for his now ex-fiancee ... despite her insinuations.

Lira Galore posted a pic on Monday of her wearing the 11 carat, $350k rock ... just a day after they broke up.

We're told it's an old photo, and Rick has the ring firmly in his possession. We're also told they broke off the engagement at Rick's home and when Lira left she was not wearing the ring. We do not know the circumstances under which the ring left her finger for his hand.

If Lira wanted to keep the ring, it was a losing battle. In Georgia, an engagement ring is a "gift in contemplation of marriage" ... meaning if the couple doesn't get hitched, the guy gets it back.

Onward, but in the ring dept., not necessarily upward.

The Warriors NBA championship ring has 240 flawless diamonds and almost 1/4 lb. in gold ... but the ring's most badass feature? DIAMONDS that GLOW under black light!!

Jason of Beverly Hills -- jeweler to 250 current NBA players -- tells TMZ Sports the "minimalist" ring has 10 hidden design features ("the inside of the ring is engraved to look like the Oracle Arena rafters") ... but the fluorescent diamonds are most impressive.

"Every diamond fluoresces," Jason told us, "We had to sort each diamond and pick flawless stones that barely fluoresced, with the exception of 4 that fluoresced bright white, almost blue."

Jason says examining the diamonds took 10 to 12 hours per ring. "We literally had guys in our factory in sleeping bags, sorting diamonds."

The glowing diamonds were strategically set at the bottom of the ring ... representing the organizations 4 NBA titles.

The finished product is awesome ... but Jason says he can't take all the credit for the ring ... "I got a good amount of input from the players, especially Steph Curry, Draymond Green, and Andre Iguodala."

#GlowingDiamonds #Swag

Drake's putting a new twist on the ole classic Jesus piece ... with his new "6 God" ice.

Drizzy turned up for his 29th birthday Saturday at Omnia Nightclub in Las Vegas, and one of his gifts was a diamond and gold chain from his fave jewelers ... Dave Bling and Will Da Boss of DWS Jewelry & Co.

Dave and Will tell us the pendant -- two hands clasped in prayer next to a 6 -- was inspired by Drake's song "6 God" off the album, "If You're Reading This It's Too Late." And even though it's not huge in size, it's worth a sweet $15k!

Even in October ... still so hot up in the 6.

Tough loss last night ... but here's something that might cheer up SD Chargers WR Keenan Allen -- his brand new fancy GRILL -- complete with 14k gold and roughly 300 DIAMONDS!!

TMZ Sports spoke with Avo at A Image Jewelry -- who's made grills for stars like Chris Brown and Kid Ink -- and he says KA recently hit him up requesting a special set for the 2015 season.

The result?! A sick gold base peppered in 3 karats worth of diamonds -- and we're told the whole thing runs in the $10,000 range!

Allen is a huge fan of mouth jewelry -- and has been seen out in some of his other A Image pieces (see below) ... but the new one is next level stuff.

Terrence Howard was weirdly in an armlock at the Emmys with one of his divorced wives, and they were both wearing wedding bling.

Mira Pak was clutching Terrence's arm as they mugged for the camera.

Terrence and Mira were married on October 2013, but she filed for divorce this March. She gave birth to their son 2 months later. The divorce became final in July.

So it's surprising that not only are they together, they're wearing rings.

It pays to be Rick Ross' ride or die chick -- the Boss just iced up his GF Lira Mercer with an enormous diamond engagement ring that set him back $350,000.

Rick and Lira Galore have only been together for a few months. She was by his side during his Georgia arrest for kidnapping and assault, and the commitment has paid off.

We're told the centerpiece of the 11 carat sparkler is a whopping 5ct emerald-cut diamond. Ross didn't hold back on the wedding band either ... it's 6 carats and all diamonds.

Ross slipped the ring on Lira's finger in NYC, in the Rafaello & Co. jewelry store. We're told he did NOT get on one knee.

The newly engaged couple celebrated with a chicken satay dinner at Red Stixs.

Liberty Ross appeared to be leaning left Tuesday night ... probably because of the sheer weight of the enormous engagement ring on her finger.

Ross and fiance Jimmy Iovine --who has the Midas touch with both Interscope and Beats under his belt -- recently decided to tie the knot.

Score one for both.

Paris Hilton came thiiis close to losing $350,000 -- so, yeah ... she's about to give the Polish firefighter who found her diamond ring the serious hook up.

Paris tells us she was panicked when she realized the ring was missing -- and says she accidentally left the massive diamond-encrusted piece in the vehicle that took her across the tarmac to her private jet.

How do you misplace a $350k piece of jewelry? P says she was exhausted because she'd performed in Ibiza the night before, then hopped a flight to Poland and worked all day ... before jetting back to Ibiza.

Bottom line ... she's extremely grateful to get it back, and says she's in the process of getting the firefighter's contact info so she can give him a reward, and send some gifts for his family.

She wasn't specific about how big the reward will be but, y'know Paris. She does everything big.

7:20 AM PT -- The airport spokeswoman tells TMZ, the firefighter told the airline he had the ring but kept it while everyone looked for the owner. Three hours later, they contacted the Fashion Week people and asked if anyone lost a ring. She did not say the fireman saw Paris on TV.

Paris Hilton got lucky in Poland when a firefighter found her extremely expensive diamond ring on an SUV, but based on what we know there's something sketchy going on here.

Paris apparently lost the diamond-studded ring Friday on an airport shuttle in the city of Lodz. Two days later, an airport fireman found it on the floor of the shuttle.

Now here's the sketchy part. An airport spokeswoman says the fireman thought the ring belonged to a flight attendant. The spokeswoman says, "soon after he noticed Hilton on TV wearing the ring." She wasn't specific as to how much time passed ... hours or days before the fireman saw Paris on TV.

Question ... Why didn't the fireman turn the ring in as soon as he found it?

We're not saying the fireman was necessarily going to keep the ring if he thought it belonged to a flight attendant, but Paris is a rich woman, and rewards are often in order when a dude finds your enormous diamond ring.