JADE and 10-12k GF ring and unique station necklace.

Vintage necklace and ring featuring green jade. ( Disclaimer- I am not a jade expert, but from my limited knowledge, I do believe this is jade rather than green glass). The ring is 10k gold over sterling silver. It has a U with overlapping arrow indicating Uncas brand. It is roughly a size 9. The necklace is 12k gold over sterling silver. It is 16 inches long and has a very beautiful and unique arabesque chain link.