cloisonné

/K L OY1 S AH0 N/
noun
  1. 1

    (metalwork) A decorative technique for metalwork, especially brass, whereby colored enamel is baked between raised ridges of the metal.

    Cloisonne is sometimes seen as a cheaper alternative to jewelled encrustation or filigree.

  2. 2

    (metalwork) Objects decorated by this technique collectively.

    The museum had a fine collection of medieval Italian cloisonne.

Source: https://en.wiktionary.org/wiki/cloisonn%C3%A9, https://en.wiktionary.org/wiki/cloisonne