1. bearing an official mark that certifies the purity of precious metals
2. having a distinctive characteristic or quality that serves as a clear indication
Usage: figurative use

Examples

• The hallmarked silver bracelet was worth considerably more than unmarked jewelry.
• All their gold rings are hallmarked with the proper purity stamps.
• The antique dealer only sold hallmarked precious metals to ensure authenticity.
• Her work showed the hallmarked precision that made her famous.
• The company’s hallmarked attention to detail set them apart from competitors.
• His hallmarked generosity was evident in everything he did.
• The hallmarked excellence of their products earned them international recognition.