The UK's Standard for Certified Card Grading

Welcome to Gold Standard Metrics (GSM), your trusted partner for professional trading card grading in the United Kingdom.

Who We Are: The Premier UK Trading Card Grading Service

Based in Halifax, West Yorkshire, we were founded by passionate collectors who recognised the critical need for an accurate, reliable, and transparent card grading service dedicated to the UK market. Our mission is simple: to provide collectors, investors, and enthusiasts with an unbiased, detailed assessment of their sports cards, Pokémon, and other TCG collectibles. We transform raw cards into certified assets, maximizing their security and market value through our rigorous Gold Standard grading process.

Our Commitment to the Gold Standard 10 Grading Scale

At the heart of our operation is our proprietary Gold Standard 10 grading scale. This methodology ensures every card is meticulously evaluated by experienced professionals, focusing on four key parameters: Centering, Corners, Edges, and Surface. We don't just assign a number; we provide a definitive, permanent certification that holds integrity and trust in the global collectibles market.

Key Features of Our Process:

  • Unbiased Expertise: Our team consists of highly trained experts dedicated solely to condition assessment, ensuring consistent and fair grading results.
  • Secure Certification: Every graded card is encapsulated in our secure, tamper-evident slab, accompanied by a unique serial number verifiable through our online Certificate Checker.
  • Transparent Standards: We clearly define the criteria for every grade, including our coveted Gold 10 benchmark, which represents the highest achievable quality.

Why Choose a UK-Based Card Grading Service?

For UK collectors, shipping valuable assets overseas can be costly, time-consuming, and risky. Gold Standard Metrics eliminates these concerns.

  • Lower Shipping Costs: Save significantly on international shipping and customs fees.
  • Faster Turnaround Times: Our competitive turnaround times minimize how long your valuable assets spend in transit.
  • Local Support: Direct, personalized customer service from our West Yorkshire team, ready to assist with your inquiries.

Start Your Submission Journey Today

Ready to unlock the true potential and market value of your trading cards? Whether you are a long-time investor or a first-time collector, Gold Standard Metrics provides the expertise and security you need.

Submit Your Cards