A SPECTACULAR BLACK OPAL, DEMANTOID GARNET, SAPPHIRE AND ENAMEL NECKLACE, LOUIS COMFORT TIFFANY FOR TIFFANY & CO. Set with a black opal, within a circular-cut demantoid garnet, sapphire and gold bead scroll mount, enhanced by a circular-cut demantoid garnet floret, suspending a black opal pendant, within a textured gold foliate mount, the reverse of green, blue and orange enamel foliate design, joined to a three-row gold rope chain, with clasp and enhancers of similar motif, circa 1915-1920.
