cf. Sigrid Barten, Rene Lalique, Schmuck und Objets d'Art 1890-1910, Prestel-Verlag, Munchen, 1978, p. 275, fig. 486 for an illustration by Lalique for the pendants

Lalique's designs in jewelry are remarkable for the use of unusual materials, such as glass and horn, which were atypical of materials traditionally used in jewelry making.