The gown valued at USD 150,000 was stolen from the actress' room at the London West Hollywood Hotel earlier this week, reported Ace Showbiz.
"Collaborating with Francisco for my Oscar dress this year was such a special and unforgettable experience," the Oscar-winning star said.
"I'm happy that it has been potentially recovered. It is a timeless and priceless piece of art."
The CK creative director Francisco Costa who designed the dress chimed in, "All of us at Calvin Klein are thrilled to know that the dress has potentially been located. This was an amazing collaboration between the brand and Lupita and the dress looked truly exquisite on her. Once it's returned to us, we will be able to have the dress restored and archived, as it now represents an important moment for the brand."
Neither Nyong'o nor Costa addressed the fake pearl controversy.
