Grading & Selling Guides
Learn how to evaluate, authenticate, and sell your cards for maximum value
How to Grade Sports Cards
Master the four pillars of professional card grading — centering, corners, edges, and surface. Learn how PSA, BGS, and CGC assign grades and how to self-evaluate your collection at home before spending on submissions.
Read Guide → ⚖️PSA vs BGS vs CGC: Which Grading Company is Best?
A head-to-head comparison of the three major grading companies. We break down grading standards, turnaround times, cost per submission, and how each slab performs on the resale market.
Read Guide → 💸How Much Does It Cost to Grade a Sports Card?
From PSA economy to BGS express, grading costs vary wildly. This guide covers every fee tier across all major graders — plus how to calculate whether grading is worth it for your specific card.
Read Guide → 🏪How to Sell Sports Cards
eBay, COMC, local card shows, Facebook groups, or direct to dealers — each channel has different fees, buyer pools, and effort levels. Find the best platform for your cards and learn how to write listings that sell.
Read Guide →Card Values & Investing
Discover which cards hold value, appreciate over time, and deserve a spot in your portfolio
Most Valuable Pokémon Cards
From Base Set Charizards to modern alt-art secret rares — a ranked breakdown of the most valuable Pokémon cards ever printed, with current market values and what drives their prices.
Read Guide → ⚾Most Valuable Baseball Cards
T206 Honus Wagners and Mickey Mantle rookies to modern Mike Trout autos — explore the baseball cards commanding the biggest prices at auction and what makes them so sought after.
Read Guide → 🚀Best Rookie Cards to Invest In
Rookie cards are the foundation of any sports card investment portfolio. We identify the most promising rookies across football, basketball, baseball, and Pokémon with the best long-term upside.
Read Guide →Don't Just Read About It — Scan Your Cards
Put these guides into practice. Upload a photo of any sports card or Pokémon card and get an AI-powered grade estimate and market value in seconds — completely free.