“Fashion should be a form of escapism, and not a form of imprisonment,” Alexander McQueen once said. If that line could represent anyone’s relationship with fashion most accurately, it would be socialite Mouna Ayoub’s. The woman with an innate love for style couture and everything in between found in fashion both her escapism and her imprisonment. Married to a Saudi billionaire businessman she had all the wealth to fill her vaults with haute couture pieces (she amassed approximately 1,400 couture pieces), but also dealt with the heart-wrenching restrictions of not being allowed to adorn these exquisite pieces.

The gilded cage permitted her to establish a collection worth over $250 million, putting it in roughly the same nine-figure league as Lady Moura superyacht. Interestingly, the 344-foot yacht included an enormous 5,500 sq ft wardrobe that was used to store more than $1 million worth of haute couture from Chanel, Dior and Versace.

While many dismiss fashion as frivolous, just a selected slice of Ayoub’s collection made it to the auction block, generating a whopping $10 million from just three major sales. Her 2023 Lagerfeld-for-Chanel auction made about $2 million; her 41-piece Gaultier sale in 2024 made over $1 million and the January 2026 Dior auction brought over $7 million, shared Vogue. That’s the power of couture, an arsenal Ayoub is heavily ammunitioned with, occasionally firing it off to generate absolute fortunes.

The collection is the result of 45 years of dedication, large sums of money (couture commissions can run well into six figures) and treating every piece like wearable art. In Mouna Ayoub’s case we can scratch the word wearable as the fashionista didn’t necessarily wear every garment. Still, Chanel, Dior and Schiaparelli maintained mannequins made to Ayoub’s measurements, allowing ateliers to work on clothes in her absence.

Owing to marital restrictions imposed by her Saudi husband billionaire Nasser Al-Rashid, she wasn’t permitted to wear every masterpiece that she purchased. That is perhaps where the obsession becomes most fascinating; she bought the extremely expensive outfits anyway. Understanding her love for couture her husband occasionally joined in. During one visit alone, the owner of the $250 million Lady Moura superyacht ordered about 11 Yves Saint Laurent couture dresses. Of course, he also handed them a set of instructions to alter the garments and make them more modest, but that wasn’t the way nor vision of Mouna. She categorically told Saint Laurent not to change them, retain the designer’s original ideas even at the cost of not wearing them around her husband. In her 2026 FT interview she said didn’t want designers adapting looks around her preferences. She wanted the original artistic idea. She stated, “Who am I to change anything?”

Clothing, especially couture, meant something entirely different to Mouna. It wasn’t about adornment or occasion, it was simply the joy of collecting. During her first couture week she bought around 30 pieces from Chanel, Dior, Gaultier and Yves Saint Laurent in a single season. Her children joked that these clothes were her dolls and she sure took care of them like children. Stored like institutional art, her older couture pieces have their own stylish sanctuary roughly three and a half hours outside Paris.

There the outfits that command hundreds of thousands of dollars at auction, lie flat in museum boxes with silk paper and are never hung. All her newer pieces are closer home and remain in her Monaco apartment. Some people want a life surrounded by wealth, some prefer the warmth of love; Mouna Ayoub, who may have experienced both, would probably still be happiest surrounded by a mountain of couture.
