That is an unusual question to say the least, but coincidently enough I took this photo from a grocery store while in the Mall of The Emirates.
Only shows the prices for a few, but maybe you can convert and compare across nut types...
I'd guess nuts from the souks in the old city would be cheaper?
While not UAE, I purchased .5KG of pistachios (1.1 lbs) for 6 USD while in Iran.