lapidary

I Am Lapidary But Not Eristic When I Use Big Words

...I did not neglect to know the truth respecting the value of my ring, and showed it to a lapidary, who rated it at three ducats.

- Lesage, The Adventures of Gil Blas of Santillane, tr. Smollett, bk 1 ch. 17

another definition: characteristic of or suitable for monumental inscriptions (lapidary phrasing)

"To add his own contribution to the pleasures of the repast, M. de Norpois entertained us with a number of the stories with which he was in the habit of regaling his diplomatic colleagues, quoting now some ludicrous period uttered by a politician notorious for long sentences packed with incoherent images, now some lapidary epigram of a diplomat sparkling with Attic salt."
-- Within a Budding Grove by Marcel Proust, translated by C.K. Scott Moncrieff and Terence Kilmartin, Revised by D.J. Enright, p 40 of the Modern Library paperback edition

NOUN: Inflected forms: pl. lap·i·dar·ies
1. One who cuts, polishes, or engraves gems. 2. A dealer in precious or semiprecious stones.
ADJECTIVE: 1. Of or relating to precious stones or the art of working with them. 2a. Engraved in stone. b. Marked by conciseness, precision, or refinement of expression: lapidary prose. c. Sharply or finely delineated: a face with lapidary features.
ETYMOLOGY: Middle English lapidarie, from Old French lapidaire, from Latin lapidrius, from lapis, lapid-, stone.