Meet 22-year-old Ekaterina Rybolovleva, the proud owner of New York’s most expensive apartment, courtesy of her über rich daddy, former fertilizer magnate, Dmitry Rybolovlev.

As RadarOnline.com previously reported, the Russian heiress just became the lucky owner of an $88 million luxury apartment, but here are some things that you may not know about the elusive rich girl.

Move over Petra Ecclestone, there’s a new, gorgeous, filthy rich billionaire heiress in town!

Meet 22-year-old Ekaterina Rybolovleva, the proud owner of New York’s most expensive apartment, courtesy of her über rich daddy, former fertilizer magnate, Dmitry Rybolovlev.

Petra Ecclestone will be hosting a post-wedding bash at her new 56,000 square foot mansion in Holmby Hills, California, RadarOnline.com is exclusively reporting.

The stunning, mega-wealthy daughter of billionaire Formula One racing chief, Bernie Ecclestone, is marrying businessman, James Stunt in Rome at the end of August.

PHOTOS: Hollywood Puts Out The 'For Sale' Sign This Summer

Petra, 22, bought her mega-mansion from Candy Spelling for a whopping $85 million dollars -- in cash!

Paris Hilton & Kim Kardashian might be Petra-fied of a new import who could knock ‘em down a notch on the social ladder, and for good reason.

Meet Petra Ecclestone -- she’s obscenely rich, strikingly-beautiful, a fashion trendsetter -- and L.A.-bound!

Ecclestone, 22, is a gorgeous blonde from England who made big news this week in plunking down upwards of $150 million for Candi Spelling's 57,000-sq. foot Los Angeles mansion. (Exact figures were not disclosed, but the house was put on the market for said amount.)

Housing slump? What housing slump?

Candy Spelling has reportedly sold her Beverly Hills mega-mansion, which was placed on the market for a staggering $150 million.

PHOTOS: Inside candy Spelling’s Mega-Mansion

According to the Wall Street Journal the huge home has been bought by 22-year-old Petra Ecclestone, daughter of Formula One racing billionaire Bernie Ecclestone.

The luxurious, sprawling 57,000 square foot mansion is set on five acres of land in upscale Holmby Hills and features 14 bedrooms, 27 baths, a bowling alley, beauty salon, several gift-wrapping rooms and parking for 100 cars.

Dallas Mavericks owner Mark Cuban, who’s been talking business with Charlie Sheen about a possible reality show, told MSNBC's Mika Brzezinski Thursday he's got no reservations doing business with the former Two and a Half Men star.

Asked if he was “getting into bed” with the TV star, Cuban said, “In bed? Absolutely not! Charlie’s personal life is his personal life!”

The billionaire praised Sheen for his ability to manipulate the media and dominate Twitter in the wake of leaving Two and a Half Men, adding that he's had cameras following the enigmatic star around to gather content for a possible reality show.

Leonardo DiCaprio’s girlfriend Bar Rafaeli wasn’t the only supermodel on board: the Oscar-nominated actor and the Victoria’s Secret model rubbed elbows with Naomi Campbell and her Russian billionaire beau Vladimir Doronin. RadarOnline.com has the latest photos from their ritzy getaway.

PHOTOS: Leonardo DiCaprio And Bar Rafaeli Vacation With Naomi Campbell And Her Billionaire Boyfriend

The foursome, who were joined by Italian billionaire Flavio Briatore and his wife the Wonderbra model Elisabetta Gregoraci, were spotted relaxing on a boat off the coast of Sardinia’s Costa Smeralda.

PHOTOS: Bar Sizzles In Lingerie

While in a speedboat, Leo kept Bar close, hugging her from behind. Once on the yacht, Leo smoked a cigar and even enjoyed a playful shoulder rub from Doronin.

PHOTOS: Leonardo DiCaprio & Bar Refaeli Courtside

Leo and Bar later hit the Sardinian nightlife. On Saturday, the group went out to celebrate the birthday of Fawaz Gruosi, president of de Grisogono jewelry. Leo kept a protective (and affectionate) hand on Bar and she returned the favor by pulling him close as she whispered in his ear.

PHOTOS: Bar Soaks Up The Sun In Mexico