I remember a movie i watched when i was very young. the story goes like this.
a ancient curse or ritual that will summon a demon.
a woman wears a amethyst ring then suddenly she birth a blob then slowly turns into a man.
the man motive is to collect several gems stone consist of emerald, ruby, topaz and a few others.
so i remembered the final scene they fought at the well which is to summon a demon.
kindly help me to figure out what is the title of the movie.