Women's retro style vintage jewelry set: copper material with enamel finish, star and cosmic pattern, necklace with extension chain and earrings

This is a women's jewelry set containing a necklace and earrings. The main material is copper with an enamel finish and electroplating process. The pattern features stars, sun, moon, clouds, and cosmic elements, with a circle as the design element. The style is retro and exotic, and the product type is a set.