chaton

noun

cha·​ton

(ˈ)sha¦tōⁿ

plural chatons

-ōⁿ(z)

1

: the head of a ring in which a stone is set or on which a device is engraved

2

: the stone set in a chaton

3

or chaton foil : a coating (as a foil or lacquer) applied to the back of a cheap gemstone to give it greater brilliancy

Word History

Etymology

French, from Old French chastun, of Germanic origin; akin to Old High German kasto container, Middle Dutch kaste barn, Old English bēocere beekeeper, Old High German kar vessel, Old Norse ker, Gothic kas

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