Unique Style Gold Plated Geometric Green Stone Pendant Necklace Stunning

Beautiful and unique necklace. Tests as 10k gold plated. Geometric drop pendant. Green stones test on presidium in The chrysoprase, emerald, nephrite category. I’m not sure what it is but is a natural green stone. Necklace length drop is 12” with 3” extender. Stone pendant portion is 3.5” in length and measures an inch wide