With rising consumer spending power and growing demand for personalization, the role of jewelry designers in product innovation and brand building has become increasingly prominent, and the realization of their commercial value has emerged as a key competitive driver in the industry. This paper employs a combination of literature review and case analysis to first define the connotation and evaluation dimensions of jewelry designers’ commercial value. Next, it examines successful practices of representative designers at home and abroad, analyzing their core strategies in brand development, market positioning, channel collaboration, and innovation models. Finally, based on these findings, it proposes a systematic path for building personal brands, deepening value‐chain collaboration, and exploring cross-field innovation. The study demonstrates that effective brand building and differentiated positioning can significantly enhance a designer’s bargaining power, while coordinated upstream–downstream value-chain efforts and diverse innovation models—spanning technology and culture—provide vital support for sustained growth in commercial value. This paper aims to offer actionable strategic frameworks for industry practitioners and decision makers and to outline directions for future research.