New vintage Jade Chinese Architecture pendant necklace

New vintage Jade Chinese Architecture pendant necklace Unique piece with nods to Art Deco and Minimalism. Chinese Symmetry and architectural detailing. Big 1970s inspirations! Beautiful thin piece of polished jade inside a brassy gold frame that looks like traditional Chinese architectural wooden fretwork. Pendant: 17x29 mm x c. 1.5 mm thick not including bail Opaque stone but Dark inclusions can be seen. Cable Chain: 15” , +1 mm thick Brassier Gold tone chain and frame. This colour is favoured in Asia because it looks like 24K gold. New vintage c. 1970s. Genuine B.C. Jade / Nephrite. Probably gold plate. Hallmark on chain: stylized diamond with “SN” or “NS”. No visible hallmarks on pendant.