noir de jais znamená v Angličtina

jet [jets]▼◼◼◼(colour)
noun
[UK: ˈdʒet] [US: ˈdʒet]

jet-black▼◼◼◻(the blackest black)
noun
[UK: ˈdʒet ˌblæk] [US: ˈdʒet ˌblæk]