This Art Deco Indian-style necklace was made in 1928-1929 by Cartier, Inc. and features 24 baroque-cut emerald drops, each surmounted by a smaller emerald bead, mounted in platinum with pave-set diamond links and an elaborate clasp. The rich green emeralds are from Colombia, the source of the world’s finest emeralds. This magnificent necklace belonged to Marjorie Merriweather Post, who wore it dressed as “Juliette” for the Palm Beach Everglades Ball in 1929. She donated the necklace to the Smithsonian Institution in 1964.

Old and new in Erzurum, posted earlier: