If shipped by Aramex - No extra charges at all
If shipped by DHL (Rare, and only if you chose expedited shipping) - I had two orders shipped through them, in the most recent one nothing extra was charged. For one order though, DHL took Rs. 800 from me for customs and handling (BS), even though I had prepaid. But I chatted with an Amazon rep and the amount I paid was credited to me,
Tip: Choose to pay in USD, you will be charged slightly less