lapidary (n.)

"one skilled in working with precious stones," late 14c., from Old French lapidaire "stonecutter," also "treatise on precious stones" (12c.), from Latin lapidarius "stonecutter," originally an adjective "of or working with stone," from lapis (genitive lapidis) "stone" (see lapideous). Meaning "a treatise on precious stones" is late 14c. As an adjective in English from 1724. Related: Lapidarist.

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Definitions of lapidary from WordNet
lapidary (n.)
an expert on precious stones and the art of cutting and engraving them;
Synonyms: lapidarist
lapidary (n.)
a skilled worker who cuts and engraves precious stones;
Synonyms: lapidist
lapidary (adj.)
of or relating to precious stones or the art of working with them; "the ring is of no lapidary value"- Lord Byron;
lapidary art