TroCuri
How we grade every card before it is listed.
Cards are scored on the PSA 1–10 scale using PSA's own word-for-word definitions, then a person signs off.
Every card is graded by TroCuri — our own AI — on the PSA 1–10 scale, using PSA's official, word-for-word grade definitions and validated against reference cards spanning the full range. It scores centering, corners, edges, and surface, then a real person signs off.
Four factors, measured against PSA tolerances.
TroCuri reads each card front and back, measuring border ratios against PSA's centering tolerances and checking corners, edges, and surface for the flaws that move a grade. Print quality, color, and gloss factor in too.
The four factors.
- Centering — border ratios measured against PSA tolerances
- Corners — sharpness versus fraying or damage
- Edges — chipping and whitening along the borders
- Surface — scratches, print lines, dents, and gloss loss
PSA 1 – 10.
Gem Mint. Virtually flawless, razor-sharp corners and clean surfaces.
Mint. One tiny flaw at most under close inspection.
Near Mint to NM-Mint. Minor wear visible on close look.
Excellent. Light, clearly visible wear.
Very Good. Rounded corners and noticeable surface wear.
Poor to Good. Heavy wear or damage.
Nothing hidden.
- An estimated grade with specific condition notes
- High-resolution photos of front and back
- Clear notes that raw cards are in-house estimates
Reviewed by a person before it goes live.
TroCuri does the heavy lifting of measuring, scoring, and comparing. A human makes the final call — AI proposes, humans approve.
Our grades are careful in-house estimates. They are not a replacement for professional third-party grading such as CGC, PSA, or PCGS.
Explore the rest.
ComicsCGC-style 0.5–10 condition research and issue details.
CoinsSheldon 1–70 research for luster, wear, and marks.
ApparelResale condition labels, measurements, and flaws.
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All standardsBack to the grading overview.