diversity vs variety

diversity and variety both are nouns.

Word	Noun	Adjective	Verb	Adverb
diversity	Yes	No	No	No
variety	Yes	No	No	No

As nouns, diversity and variety are synonyms defined as:

Other synonyms of diversity include diverseness, multifariousness.

diversity (noun)	variety (noun)
the condition or result of being changeable	noticeable heterogeneity
noticeable heterogeneity	a difference that is usually pleasant
	a category of things distinguished by some common characteristic or quality
	a show consisting of a series of short unrelated performances
	(biology) a taxonomic category consisting of members of a species that differ from others of the same species in minor but heritable characteristics
	a collection containing a variety of sorts of things