We don't have synonyms for parure yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are parture and parore.
"1979: Why, then, was she not in Bond Street, as advertised, scribbling her signature on Travellers' Cheques and scooping up emerald parures and things? -- Kyril Bonfiglioli, After You with the Pistol (Penguin 2001, p. 202)"
"1979: Why, then, was she not in Bond Street, as advertised, scribbling her signature on Travellers' Cheques and scooping up emerald parures and things? -- Kyril Bonfiglioli, After You with the Pistol (Penguin 2001, p. 202)"