The '12 Years A Slave' actress caused a real stir when she arrived at the Academy Awards on Sunday night in the pearly-white dress, however, it was reported as having gone missing on Friday.
Luckily, it's now been found by staff at LA's London Hotel, where it was discovered in a toilet.
Not quite the star treatment a £100,000 Calvin Klein dress deserves, we're sure you agree.
Lupita's dress has only acquired minimal damage since being stolen, with an LAPD officer claiming: "Hotel staff searched and found the dress in a bag, hidden behind a counter, in the bathroom.
"A few smaller pearls appear to have fallen off the dress, but it seems to be intact."
The stunning dress, which was studded with 6000 natural white pearls, is thought to have been stolen from Lupita's room at the London Hotel in West Hollywood while the actress was out of the room.
A statement from the hotel earlier this week said they were "working with law enforcement", while Lieutenant William Nash, of the Los Angeles County Sheriff's Department said officers were checking CCTV footage.
"Ms Nyong'o was not in the room at the time of the theft," Deputy John Mitchell told Reuters.
On the red carpet at the Oscars on Sunday night, Luptia claimed that her dress was "an homage to the sea".