We don't have synonyms for cloison yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are cloisonn and closson.
"zo? wore a pair of cloisonne earrings she had bought in France."
(n) :
a decorative technique for metalwork, especially brass, whereby colored enamel is baked between raised ridges of the metal; an example of such decorative art, or an object decorated by it
"cloisonne is sometimes seen as a cheaper alternative to jewelled encrustation or filigree."
"zo? wore a pair of cloisonne earrings she had bought in France."
(n) :
a decorative technique for metalwork, especially brass, whereby colored enamel is baked between raised ridges of the metal; an example of such decorative art, or an object decorated by it
"cloisonne is sometimes seen as a cheaper alternative to jewelled encrustation or filigree."