ROQUEBRUNE-CAP-MARTIN, France   — When it comes to Chanel , there will be signs. Long before building the house that bears her name and becoming the couture figure she is best remembered as, Gabrielle Chanel “invented a myth based on signs and symbols,” said Chanel watch and jewelry president Frédéric Grangié, recalling the words of her grand-niece Gabrielle Palasse-Labrunie. From lions and camellias to talismanic and cosmological motifs, the visual vernacular associated with the designer’s mystique is at the heart of the house’s latest “Signes & Symboles” high jewelry collection. With its total of 85 pieces, the collection is “almost like a tribute to jewelry [and is] very different to what we have done recently,” said Grangié. You May Also Like “It’s also a bit like a treasure chest that you open and [where] you find multiple stories,” he continued.…