How to Check Card Surface for Grading: A Step-by-Step Guide
Learn how to check card surface for grading using raking light, a loupe, and a step-by-step checklist to spot scratches, print lines, dents, and stains before you submit.
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Matteo G.
Founder of Card Grading AI and trading card collector
Matteo G. is the founder of Card Grading AI and a trading card collector. He built the app to help collectors check centering, corners, edges, and surface before paying for professional grading, and he writes these guides to share what to look for before you submit.
Guides
Articles by Matteo G.
Are Off-Center Cards Worth Grading? Run the Math First
Are off-center cards worth grading? Learn the published centering limits, the grade ceiling they create, OC qualifiers, and when the fee isn't worth it.
Read guideHow to Check Card Centering With Your Phone (Accurately)
Check card centering with your phone: camera setup, a step-by-step checklist, the ratio math, PSA thresholds, and the mistakes that skew phone readings.
Read guidePSA 10 Centering Requirements: The Real Numbers
PSA 10 centering requirements explained: front and back ratios, how to measure them, a hands-on checklist, and when an off-center card isn't worth grading.
Read guideSports Card Grading Checklist: 9 Steps Before You Submit
A step-by-step sports card grading checklist covering centering tolerances, corners, edges, surface, autos, relics, and when grading isn't worth the fee.
Read guidePokemon Card Grading Checklist: 8 Steps Before You Submit
A step-by-step Pokemon card grading checklist: centering tolerances, corners, edges, surface checks, Pokemon-specific flaws, and when grading isn't worth it.
Read guideCard Grading App for Beginners: What to Look For
Choose and use a card grading app as a beginner: features that matter, real PSA centering standards, a hands-on checklist, and when grading isn't worth it.
Read guideAI Card Grading vs Manual Inspection: What Each Catches
AI card grading vs manual inspection: where each method wins, where it fails, and a hands-on checklist for combining both before you pay to grade.
Read guideWhat Is Card Pre-Grading? A Collector's Guide Before You Submit
Card pre-grading explained: what it is, how to check centering, corners, edges, and surface, and when a card isn't worth the grading fee.
Read guideHow to Store Trading Cards Safely: A Collector's Guide
Learn how to store trading cards safely with the right sleeves, toploaders, boxes, humidity levels, and storage habits that protect condition and value.
Read guideTrading Card Inventory for Insurance: A Practical Guide
Build a trading card inventory for insurance: what to document, how to value cards, photo standards, backups, and claim-ready records US collectors can trust.
Read guideHow to Track Card Purchase Prices (Cost Basis Guide)
Learn how to track card purchase prices accurately: cost basis, fees, shipping, lots, trades, and grading costs — plus a simple system you can keep up with.
Read guideHow to Catalog a Sports Card Collection (Step by Step)
Learn how to catalog a sports card collection the right way: naming conventions, key data fields, storage workflow, photos, and scaling from 100 to 10,000 cards.
Read guideHow to Organize a Pokemon Card Collection (Step by Step)
A practical system for organizing a Pokemon card collection: sort by set, grade tiers, and storage, then track everything digitally without losing value.
Read guideWhat Makes a Card Gem Mint? The 4 Subgrade Rules
Learn what makes a card gem mint: centering tolerances, corner sharpness, clean edges, and flawless surfaces — plus how to pre-check a card before you submit.
Read guideCard Creases and Dents Grading: A Collector's Guide
Learn how creases, dents, and bends affect card grades, how to spot them with light, and how to pre-screen cards before you pay PSA, BGS, or CGC.
Read guidePrint Lines and Card Grading: What Graders Actually See
Learn what print lines are, how PSA, BGS, and CGC treat them, how to spot them at home, and how AI pre-grading flags print defects before you submit.
Read guideCard Surface Scratches Grading: A Collector's Guide
Learn how card surface scratches affect grading, how to spot them with light, and how to pre-check surface condition before you submit to PSA, BGS, or CGC.
Read guideCard Edge Whitening and Grading: What Graders Actually See
Learn how card edge whitening affects grading, how to spot it under good light, and how to pre-check edges with Card Grading AI before you submit.
Read guideCard Corner Damage Grading: A Collector's Guide
Learn how graders evaluate card corner damage, how to inspect corners at home, and how AI pre-grading estimates corner condition before you submit.
Read guide12 Common Card Grading Mistakes (And How to Avoid Them)
Avoid the most common card grading mistakes US collectors make, from bad centering checks to over-submitting, and learn how to pre-screen cards before you ship.
Read guideHow to Photograph Cards for Grading: A Practical Guide
Learn how to photograph cards for grading with the right light, angles, and settings so surface flaws, edges, and centering show up clearly.
Read guideRaw vs Graded Cards: Which Is Worth More in 2026?
Raw vs graded cards explained: costs, liquidity, resale value, risk, and how to decide which cards to slab and which to sell ungraded.
Read guideCard Grading Scale Explained: 1-10 Grades Made Simple
A clear breakdown of the 1-10 card grading scale, subgrades, half-point grades, and what each number actually means for your cards' value.
Read guideHow to Measure Card Centering: A Step-by-Step Guide
Learn how to measure card centering like a grader: border math, 55/45 tolerances, scanning tips, and how AI pre-grading estimates centering fast.
Read guideTrading Card Condition Guide: Grades Explained
Learn how to read trading card condition like a grader: surface, corners, edges, centering, plus grade scales, lighting setup, and pre-grading tips.
Read guideHow to Prepare Cards for Grading: A Step-by-Step Guide
Learn how to prepare cards for grading: pre-screening, cleaning, sleeving, penny sleeve and Card Saver prep, packing, and submission forms that avoid costly mistakes.
Read guideShould I Grade My Pokemon Cards? A Practical 2026 Guide
Not every Pokemon card is worth grading. Learn the value thresholds, real costs, condition red flags, and a simple checklist to decide before you submit.
Read guideHow to Value Sports Cards With AI: A Practical Guide
Learn how to value sports cards with AI: identify the card, estimate condition, read comps, and adjust for grade so you price with confidence.
Read guidePSA 10 vs PSA 9 Explained: What Separates the Grades
PSA 10 vs PSA 9 explained: the exact centering, corner, edge, and surface differences that decide a Gem Mint grade, plus how to pre-screen cards before you submit.
Read guideMTG Collection App: How to Pick the Right One in 2026
A practical guide to choosing an MTG collection app: scanning, pricing, deck sync, foil condition checks, and where AI pre-grading fits for Magic collectors.
Read guideCard Collection Tracker: How to Pick the Right One
A practical buyer's guide to choosing a card collection tracker in 2026: features that matter, pricing traps, and how to set up your inventory the right way.
Read guideTCG Portfolio Tracker: Manage Card Value Like an Investor
Learn how a TCG portfolio tracker works, which metrics matter, and how to build a system that tracks cost basis, condition, and grading upside.
Read guideSports Card Grading App: Pick the Right Cards to Submit
How to use a sports card grading app to pre-screen centering, corners, edges, and surface before you pay PSA, BGS, or CGC submission fees.
Read guideHow AI Card Grading Works: Inside the Scan-to-Score Process
A clear, practical look at how AI card grading works: image capture, edge detection, centering math, surface analysis, and how to read your pre-grade estimate.
Read guideHow to Check a Card's Value: A Collector's Guide
Learn how to check a card's value step by step using sold comps, population data, condition, and grade multipliers—plus how AI pre-grading helps you price smarter.
Read guideBest Pokémon Card Scanner App in 2026
Compare what a great Pokémon card scanner should do in 2026: AI condition estimates, centering checks, catalog matching, portfolio tracking, and clear photo guidance.
Read guideHow to Grade Pokémon Cards with AI
Learn how AI Pokémon card grading works, what photos to use, how to read centering and surface signals, and when a pre-grade should lead to a professional submission.
Read guideHow to Track Your Trading Card Collection (2026 Guide)
Learn how to track a trading card collection step by step: cataloging, condition notes, values, storage IDs, and tools that keep your portfolio organized.
Read guidePSA vs BGS vs CGC: Which Grading Company Is Best?
Compare PSA, BGS, and CGC for trading cards: brand strength, label style, subgrades, turnaround expectations, and how AI pre-grading helps you choose what to submit.
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