cabochon n. (Jewelry) A stone of convex form, highly polished, but not faceted; also, the style of cutting itself. Such stones are said to be cut en cabochon.
... this zodiac and spaced at mathematically regular intervals were nine ovoids of intensely living light. They shone like nine gigantic cabochon cut sapphires; they ranged from palest, watery blue up through azure and purple and down to a ghostly mauve shot with sullen undertones ... — The Metal Monster • A. Merritt
... fiss or fuss; the gem set in a ring; also applied to a hillock rounded en cabochon. In The Nights it is used to signify ... — The Book of the Thousand Nights and a Night, Volume 2 • Richard F. Burton
...
