granted vs given

granted is not a noun while given is a noun.

Word	Noun	Adjective	Verb	Adverb
granted	No	Yes	No	No
given	Yes	Yes	No	No

As adjectives, granted and given are synonyms defined as:

granted (noun)	given (noun)
	an assumption that is taken for granted

granted (adjective)	given (adjective)
acknowledged as a supposition	acknowledged as a supposition
	(usually followed by `to') naturally disposed toward