Antique Turquoise Coral and Amber Beads Necklace. The Tibetan plateau was inhabited at least 21,000 years ago and has a long and rich history. This is depicted in this phenomenal example of their traditional jewelry. Recently restrung with a Chinese silver clasp, this amber, turquoise and coral necklace is rare and exquisite! Location: Tibet | Circa Date: 18th - 19th Century | Dimensions: 12" Long.