A green hardstone and coral court necklace, chao zhuLate Qing dynastyStrung with 108 beads possibly of green chalcedony separated by four large 'Buddha head' beads and a gourd shaped 'Buddha head stupa' bead of coral, the three subsidiary strands each showing ten small coral beads above sapphire, tourmaline and ruby teardrop pendants in gilt wire mounts, the green silk cord counterweight for the back strung joining an oval-shaped shou medallion of coral and an emerald teardrop pendant in a gilt wire mount. 30in (76cm) long