des bijoux de classe
une femme élégante
les bijoux verts
signora classy
des bijoux élégants
distingué (sounds like dee-steh[n]-GAY) or raffiné (sounds like rah-fee-NAY)
bijous
le sucre(sassy)
classe de roba
Yes, French people may wear black. This is considered sober and classy.
No. Burj Dubai is in the United Arab Emirates (Asia) French Crown Jewels are in France (Europe)
"Haute" translates to "high." It is a French word indicating "classy".
Wine that comes in a box is not usually a high quality wine. To say it is classy is being sarcastic.