Exceptional Art Déco necklace, central very fine green tourmaline of ca. 50 ct, further small cut-into-socket tourmalines, old-brilliant-cut diamonds totalling ca. 2.7 ct, good colour a. clarity, center piece platinum, necklace 18K WG, 102.6 gr, necklace L: ca. 37/42/47 cm due to removable parts, 1930s, necklace later, good condition. Necklace marked "LOTOS" and " D.R.G.M", incl. case (not original).