Handcrafted large gold tone wire wrapped stone pendant on stone bead necklace

Handcrafted necklace with a large round pendant in green and cream colored stone wrapped in gold tone wire. The pendant has a brass colored Asian coin shaped piece in the center. I am not sure of the stone but it tests in the nephrite range on the Presidium gem tester. The necklace is made of 6mm matte Quartz and wood grain stone beads. There is a gold tone lobster clasp. The pendant is 2 7/8” and the beaded necklace is 20”.