gra-SEE-lah is Gracila or Grasila (in my Spanish, only Grasila), not
Graciela. I'm sure about this. In Spanish, the pronunciation rules are very clear: IE is a diphthong pronounced always as YEH; the sound EE is always spelled I. The reductions of diphtongs (or two vowels) are typical of an unaccurate pronunciation, for example
Eusebio pronounced as Usebio, Eulogio as Ulogio, deficiencia as deficencia, Joaquín as Juquín, etc.).
And the stressed syllable is correct.