lapidary vs lapidarist

lapidary and lapidarist both are nouns.

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

As nouns, lapidary and lapidarist are synonyms defined as:

lapidary and lapidarist: an expert on precious stones and the art of cutting and engraving them

lapidary (noun)	lapidarist (noun)
a skilled worker who cuts and engraves precious stones	an expert on precious stones and the art of cutting and engraving them
an expert on precious stones and the art of cutting and engraving them

lapidary (adjective)	lapidarist (adjective)
of or relating to precious stones or the art of working with them