The name Piz Gloria originated in Ian Fleming's James Bond novel On Her Majesty's Secret Service (1963), wherein the hideout of the villain is Piz Gloria, a mountain-top building containing an allergies investigation clinic. In the movie the location is implied as being near St Moritz.
The movie production team found the restaurant partly constructed, and financially contributed to its completion in return for exclusive use for filming the movie, where the building is shown quite prominently.
Below are photos: Then & Now.
The curling scenes from the movie can be viewed on YouTube: Click Here