It’s a fashion mystery!

Days after Lauren Sánchez married Amazon founder Jeff Bezos in a lavish $50 million Venice wedding, one of her many bridal dresses may have vanished into thin air.

According to Italian outlet Corriere della Sera, a look from Sánchez’s wedding-weekend wardrobe has gone missing — and while some locals have speculated it may have been stolen, no complaint has been filed or investigation opened.

5

5

5

While it’s unknown which of Sánchez’s dresses might be MIA, the Daily Mail claims the custom Dolce & Gabbana gown the bride wore down the aisle is safe.

Inspired by the look Sophia Loren wore to marry Cary Grant in the 1958 film “Houseboat,” Sánchez’s lace ceremony dress featured long sleeves, a corseted bodice, a high neck and a mermaid skirt; 180 buttons adorned the front.

“It went from ‘I want a simple, sexy modern dress’ to ‘I want something that evokes a moment,’ and where I am right now. I am a different person than I was five years ago,” the new Mrs. Bezos told Vogue. 

“It is a departure from what people expect,” added the 55-year-old former news anchor, who typically opts for strapless or plunging silhouettes.

5

5

Prior to the “I dos,” Sánchez attended the couple’s two welcome dinners in a vintage Alexander McQueen gown with button-accented stripes and a floral-embroidered Schiaparelli Haute Couture look.

The day of her wedding, she stepped out in a white Dior skirt suit and Hermès headscarf before changing into her ceremony gown.

And for her and Bezos’ post-wedding, pajama-themed “Dolce Notte” afterparty, the mother of three wowed in a strapless Atelier Versace gown with crystal mesh embroidery (as one does for a PJ party).

Her digital Vogue cover story mentioned even more planned looks, including a corset gown inspired by the Rita Hayworth film “Gilda,” a chain-and-crystal-embellished Oscar de la Renta cocktail dress, a burgundy velvet strapless Dolce & Gabbana number and an embellished silk style featuring a print of a Canaletto painting.

To be fair, that’s a lot of couture to keep track of.