The fashion industry has set SDG 12, “Ensure Sustainable Consumption and Production Patterns,” as a transformation goal, promoting the concept of “cradle-to-cradle design” by using urban mining to recycle precious metal materials and combining packaging design as a product to reduce environmental impact and create a sustainable and friendly circular economy model. This study explores the possibility of developing sustainable jewelry through the combination of a green packaging reuse design and a circular economy. First, through literature review and expert interviews, the strategies for a green packaging reuse design and a circular economy model for sustainable jewelry will be established, including “packaging design and material selection,” “establishing the concept of recycling and circular economy with consumers,” and “achieving a sustainable economy.” Then, a survey will be conducted among female consumers aged 19–30 in Taiwan to investigate their willingness to purchase sustainable jewelry. Through analyzing the needs, psychology, and behavior of the jewelry consumer group, a people-oriented green packaging reuse design, and circular economy strategy and design guidelines will be proposed.