Stone was tested with my Presidium gem tester. Carved sun or moon face at the top and a carved somewhat teardrop shaped piece at the bottom.
That piece at the bottom does have many chips, inclusions and is abraded. The pendant is 3' long and 1 1/4 widest. The chain is 22 3/4 long end to end. The links are 5/16" x 9/16" each.
I believe it was made in India.