PSA, CGC and Beckett - how it works and whether it is worth it.https://www.theorycards.org.uk/en-gbSun, 04 Oct 2026 08:30:01 GMTeditor@theorycards.org.uk (Theory Cards)editor@theorycards.org.uk (Theory Cards)Copyright 2026 Theory Cards60https://www.theorycards.org.uk/images/theorycards-logo.pnghttps://www.theorycards.org.uk/https://www.theorycards.org.uk/how-graders-actually-decide-between-a-9-and-a-10/https://www.theorycards.org.uk/how-graders-actually-decide-between-a-9-and-a-10/The jump from Mint to Gem Mint is decided under bright light and magnification, and it usually comes down to factors set at the factory rather than anything a collector did wrong.Sun, 04 Oct 2026 08:30:01 GMTTheory CardsGradinghttps://www.theorycards.org.uk/how-to-verify-a-graded-card-slab-before-resale/https://www.theorycards.org.uk/how-to-verify-a-graded-card-slab-before-resale/Encapsulation protects a card physically, but resale value depends on buyers being able to verify that the slab and its contents haven't been swapped, cracked or faked.Thu, 01 Oct 2026 08:30:01 GMTTheory CardsGradinghttps://www.theorycards.org.uk/how-cards-are-encapsulated-why-the-slab-matters-for-resale/https://www.theorycards.org.uk/how-cards-are-encapsulated-why-the-slab-matters-for-resale/Grading is only half the story; the plastic case a card ends up in affects how easily, and for how much, you can sell it on.Wed, 23 Sep 2026 08:30:01 GMTTheory CardsGradinghttps://www.theorycards.org.uk/how-sub-grades-work-why-centring-is-the-usual-culprit/https://www.theorycards.org.uk/how-sub-grades-work-why-centring-is-the-usual-culprit/Corners, edges, surface and centring each get their own score before a card's final grade is set, and centring is the one most likely to hold a card back.Mon, 21 Sep 2026 08:30:02 GMTTheory CardsGradinghttps://www.theorycards.org.uk/crossover-grading-explained/https://www.theorycards.org.uk/crossover-grading-explained/Some collectors submit a card already sealed in one company's slab to a rival grader hoping for a better label or a stronger sale price, but the process carries real risks worth understanding first.Sun, 20 Sep 2026 08:30:01 GMTTheory CardsGradinghttps://www.theorycards.org.uk/psa-10-vs-9-difference-explained/https://www.theorycards.org.uk/psa-10-vs-9-difference-explained/The gap between a near-perfect card and a perfect one looks tiny to the naked eye but can be worth hundreds of pounds, so here is what graders are really looking at.Sat, 19 Sep 2026 08:30:01 GMTTheory CardsGradinghttps://www.theorycards.org.uk/how-to-get-cards-graded-in-the-uk/https://www.theorycards.org.uk/how-to-get-cards-graded-in-the-uk/A plain-English walkthrough of your grading options in 2026 - CGC's London office, PSA via UK dealers, and domestic UK graders - with the costs, tiers and prep steps you need to know before you post anything.Sat, 05 Sep 2026 01:49:56 GMTTheory CardsGradinghttps://www.theorycards.org.uk/psa-bgs-cgc-which-grading-company/https://www.theorycards.org.uk/psa-bgs-cgc-which-grading-company/The three major graders, how their scales differ, and how to choose the right slab for your card.Thu, 27 Aug 2026 09:00:00 GMTTheory CardsGradinghttps://www.theorycards.org.uk/how-card-grading-works-worth-it/https://www.theorycards.org.uk/how-card-grading-works-worth-it/What actually happens when you send a card to be graded, and how to decide whether the slab will pay for itself.Wed, 26 Aug 2026 09:00:00 GMTTheory CardsGrading