Schedule : 17/02 till 21/02
Flight : #2.500 QR
Visa : 50€ (for French citizens, you have to check for your country)
Hotel : #25$ per day
Meals : between 15 an 30 QR
Lifts : 15 QR per day
+ transport Tehran -> Dizin
+ skis rental

BTW, I found all these prices on the net, if anyone get other infos... most welcome.