Er, that's kinda my point, Asthon.
The LATIN pronunciation of "ae" is the same as how English speakers say "sky" or "mine".
The ENGLISH pronuciation of "Aegean" is, as the dictionaries said, "ih", not "eye".
My point to you being that you can't necessarily use an English dictionary to get the Latin pronunciation of a diphthong.
Regards,
-scott anderson