China’s economic growth has triggered a surge in jewelry consumption, with the jewelry market expected to reach US$62.5 billion by 2027. Currently, the Chinese jewelry market is mainly dominated by foreign jewelry brands, with ambiguous positioning of jewelry products in China and a lack of theoretical research on jewelry products. This study introduces for the first time the jewelry effect, a phenomenon when the qualities of jewelry can be transmitted to the wearer and influence others to perceive the wearer. This study investigated the qualities and attributes of jewelry through the jewelry effect and provided a test research methodology, as well as questions for a questionnaire. The results show that jewelry reinforces gender differences and that higher-quality jewelry reinforces these associations. In addition, significant cross-cultural differences were found, and this study fills a gap in experimental aesthetics by elucidating the impact of jewelry on wearer perception, highlighting the intricate interplay between environmental factors, jewelry attributes, and individual differences.