preciosity vs preciousness

preciosity and preciousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
preciosity	Yes	No	No	No
preciousness	Yes	No	No	No

As nouns, preciosity and preciousness are synonyms defined as:

preciosity and preciousness: the quality of being fastidious or excessively refined

preciosity (noun)	preciousness (noun)
the quality of being fastidious or excessively refined	the positive quality of being precious and beyond value
	the quality of being fastidious or excessively refined
	the quality possessed by something with a great price or value