"Right here we've got about a half a million (dollars) in two rings," he said in the episode, holding up two boxes from a famous custom jeweler.

On Aug. 17, at least two thieves broke into the house and ran off with an estimated $7 million in jewelry -- a staggering sum that some people believe could be the most lucrative home burglary in Las Vegas history.

Mayweather is offering a $100,000 reward for information leading to the return of the jewels, one of his publicists announced this week.

A home surveillance camera captured one of the suspects, who was wearing glasses and a hooded sweatshirt, during the burglary. But a private investigator Mayweather hired to work with police detectives said the case is at a dead end.

"There are no leads," said K.W. Hasan, who works for the investigating firm of Sherbrooke, Jelan and Associates. "That may be a method to the madness of setting the reward."

Mayweather flaunted several pieces of jewelry in the "Cribs" episode that aired in August 2007, including gold and platinum encrusted rings, watches, bracelets and medallions of horses, boxing gloves and the logo of his company Philthy Rich Records.

At one point, he held up a medallion that he said was worth $275,000 and a Rolex watch he valued at $500,000.

The pieces were displayed near the sink in his master bathroom, steps away from a wall of doors and windows leading into the bedroom where the suspects are believed to have broken into the home.

None of the items stolen was in a safe, Hasan said. He wouldn't say whether the items stolen were the same jewelry featured on the TV show.

The six-time boxing champion and former Olympian who surprised the boxing community when he retired in June wouldn't comment on the burglary, according to his manager. His publicist also declined comment.

Police records show the burglary was reported at 4:20 a.m. on Aug 18.

Mayweather owns several homes in Las Vegas, but the 7,300-square-foot property on roughly three-quarters of an acre in Summerlin, near Lake Mead Boulevard and Hillpointe Road, was the site of the "Cribs" episode and last month's burglary.

Ten days after the crime was reported Las Vegas police sent out a vague press release, along with a suspect's image, stating that four people "entered a residence in a gated community in the Northwest part of the valley and took very unique items."

It noted that a $2,000 reward was being offered by Crime Stoppers for anybody who could identify the suspects.

The $7 million haul may be the largest in a residential home burglary. Not even the $4 million in silver Rick Tabish was arrested for digging up from the late Ted Binion's estate comes close.

"Seven million dollars? That's big in anybody's book. That's huge," former sheriff and 33-year Metropolitan Police Department veteran Jerry Keller said. "That's the biggest I can remember."

Author Dennis Griffin, who wrote about mobster Tony Spilotro's burglarizing "Hole in the Wall" gang in his book, "Cullotta," said he had never heard of somebody stealing so much money from one house in Las Vegas.

Spilotro's gang, including mobster Frank Cullotta, made a racket in the late 1970s and early 1980s from burglarizing homes and business, and were eventually arrested while trying to steal $1 million from a safe at a business, he said.

"Those were the professionals, and they never even attempted anything in that ($7 million) price range," Griffin said.

Las Vegas police did not return calls seeking comment Wednesday.

Mayweather's net worth is nearly $150 million, according to some media reports, and he has turned to appearances to the wrestling ring. He made $20 million for an appearance in WWE's WrestleMania 24 this year, according to a March Associated Press report.

During last year's appearance on "Cribs," he showcased several of his championship belts, multiple sports cars and other lavish belongings.

After allowing cameras into his house, he locked the door and waved his arms and said, "We have to lock the house."

At the end of the episode, he tossed a stack of $100 bills into the air and looked into the camera.

"I got a lot of problems," he said. "But money ain't one of them."

Review-Journal reporter Antonio Planas contributed to this report. Contact reporter Lawrence Mower at lmower@ reviewjournal.com or 702-383-0440.