I am an Iranian Jew and my surname is Machboubian, I have Jewish Iranian friends with surnames Eshagian. Yes, many Armenians have surnames ending in "IAN" but that is not exclusive to Armenians. Rosenberg is german, but german Jewish. Lechovitsky is polish but polish Jewish. It all depends on the actual name and how it's used. A quick verification would be to find another Saborjian and see if they are Jewish or Armenian.
Hungary's Orban: Refugees threaten Europe's Christian roots (Reuters)
from the article: Is Ahmadinejad trying to hide his Jewish roots by bashing Israel?