"Montage" mother-of-pearl and black enamel earrings with cubic zirconia accents. Leverbacks. The Montage Collection by Belle Etoile showcases a marvelous mosaic of texture and dimension. Featuring hand-painted enamel and luxuriously lustrous mother-of-pearl, the Montage Collection is the perfect combination of contrast and elegance. Created with rhodium-plated, nickel-free sterling silver.