A classic and chic Van Cleef & Arpels Turquoise Necklace with one large pear-shaped turquoise cabochon; seventeen round & oval shape turquoise cabochons; four-hundred-and-seventy round and single-cut diamonds weighing approximately twenty carats, signed Van Cleef & Arpels, NY, numbered, length 16 1/2 inches, circa 1950. This necklace belongs to the original and highly sought-after collection designed by the workshops of Van Cleef & Arpels, using master jewelers and fine-quality, natural Iranian turquoise; a collector's jewel.