News
Guides and updates on physics-based card grading.
44 articles total
How to store your cards to keep them mint
Condition is everything in grading. Here's how to store and handle your cards so they stay mint until you're ready to grade.
Corners, edges and surface: the wear that decides a grade
Centering is fixed at the cut, but corners, edges and surface are where handling shows. Here's what graders measure and how to protect them.
Which of your cards are worth grading?
You don't need to grade your whole collection. Here's how to pick the cards where grading actually adds value.
AI grading vs physical measurement: what’s the difference?
AI graders predict a grade from photos. Measurement-based grading measures the card. Here's why the distinction matters for your cards.
What is a tamper-evident slab – and why it matters
The slab does more than protect your card. Here's what 'tamper-evident' means and why it's central to trusting a grade.
How to choose a Pokémon card grading company in the UK
Looking for a UK Pokémon card grading company? Here's exactly what to look for - consistency, turnaround, cost, authentication and trust - and how to tell a serious grader from the rest.
Understanding your CALIBRE grading report
Every CALIBRE grade comes with a full report. Here's how to read it - the overall grade, the four subscores, and the measurements behind them.
Why CALIBRE exists
A card's grade decides its value - so a grade should be measured, repeatable and provable, not a matter of opinion. That's why we built CALIBRE.
How card grading works: what’s measured, and why it’s not a guess
A complete, plain-English explanation of how card grading works - the four factors that are measured, how they combine into one grade, and why measurement beats human opinion and AI prediction.
Pokémon card grading in the UK: the complete guide
Everything UK collectors need to know about grading Pokémon cards - what it is, what it costs, how the 1–10 scale works, which cards to grade, how to send them, and how…