New vintage Amber earrings

New vintage Amber earrings Gold plate dainty design with accent “diamonds”. C. 1980s. New Nwot. On original placard. This amber has visible inclusions. The same manufacturer supplied genuine B.C. Jade, Rhodonite, Hematite, Paua shell. I’m just not sure if the amber and amethyst are natural or synthetic “lab” gems. I paid the premium price so I tend to think they are good quality at least!