It's prompted some people to worry about the extreme measures she's taken.
But sceptics have suggested Sahar achieved the effect with the help of makeup and prosthetics.
A TV personality Nadya who was known for looking like Angie had got some surgery done to look more like the actress.
Sahar's followers have posted to say she looks like a "zombie" and said her pictures make them "feel sick".
The reaction online to her looks hasn't been the most supportive - one person cruelly suggested that she looks less like Angelina Jolie than the Corpse Bride, from Tim Burton's 2005 animated film of the same name.
Naysayers have pointed out that pictures on her Instagram account - which appears to be fairly new, since only about 30 photos have been posted - are inconsistent with nose and cheek placement.
The teen, who describes herself as a "strong sister", has amassed more than 310,000 followers on social media.
Have a look at her drastic transformation.
HollywoodLifers, are YOU shocked by Sahar's transformation?