Claudia Meza, who is Miss Trujillo, also lost her crown despite complaining that she had been drugged.
Grados is still Miss Peru and will participate in Miss Universe representing her country, but her future will be determined by the international body.
Following the incident, a bevy of beauty queens have already been suspended or stripped of their crowns after the video was leaked online.
I was surprised because it all happened so fast.
According to local media, 19-year-old Anyella Grados partied at a carnival event in the city of Rioja in the north-western Peruvian region of San Martin earlier this month and she was filmed without her consent.
.