lapidarist vs expert

lapidarist and expert both are nouns.

Word	Noun	Adjective	Verb	Adverb
lapidarist	Yes	No	No	No
expert	Yes	Yes	No	No

As nouns, expert is a hypernym of lapidarist; that is, expert is a word with a broader meaning than lapidarist:

lapidarist: an expert on precious stones and the art of cutting and engraving them
expert: a person with special knowledge or ability who performs skillfully

lapidarist (noun)	expert (noun)
an expert on precious stones and the art of cutting and engraving them	a person with special knowledge or ability who performs skillfully

lapidarist (adjective)	expert (adjective)
	having or showing knowledge and skill and aptitude
	of or relating to or requiring special knowledge to be understood