The independent authority for precious metals, authentication and compliance testing. We provide assurance and verification, backed by over 250 years of expertise and integrity.
Over 250 years of trust, now covering everything from hallmarks to hazardous substances. We integrate our services to adapt to your needs.
Explore our history, browse our date letter archive, find answers to frequently asked questions, and download your compulsory dealer’s notice. Need anything else? Get in touch. We’re here to help.
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