The major graders at a glance

PSA is the market-volume leader, especially for sports and vintage, and its 10s often have the deepest, most liquid market. BGS (Beckett) is popular for modern cards and known for subgrades and the coveted Black Label 10. SGC has strong standing in vintage with its distinctive black insert. CGC, with roots in comics, has grown fast in trading cards — especially TCG like Pokémon. TAG is the newer, tech-forward entrant using computer-vision grading with detailed digital reports.

Why the grader affects value

The same card in the same numeric grade can sell for different amounts across companies, because the market prices in each label’s population, consistency, and demand. That is why a value is only meaningful when it is tied to a specific grader and grade — not a generic "9" or "10."

Slabline reads them all

Slabline values cards graded by PSA, BGS, SGC, CGC, and TAG — each at its specific grade, from real comparable sales. Scan the slab label (the grader and cert number are read automatically) and you get a value that reflects exactly what you own, plus a collection-wide 0–1000 protection score.