Eti lile gauni limeibiwa hotelini!!

Oh no, jamani isiwe kweli, Lupita Nyong'o's now-famous Oscar dress -- adorned in pearls -- was stolen right out of her hotel room ... TMZ has learned.
Law enforcement sources tell TMZ ... the dress was taken out of Lupita's room at The London West Hollywood. The dress is made of pearls ... 6,000 white Akoya pearls. It's valued at $150,000.

Our sources say Lupita told cops it was taken from her room sometime between 8 AM and 9 PM Tuesday ... while she was gone.