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Visible-condition laboratory

We grade what you show us.

52-point visible-condition reports. Photos only. A vision model records what is visible. A published formula turns that record into a number. Incomplete photos cannot produce a gem.

See sample XGR-DEMO01 Read the entire protocol
52Checkpoints, counted in the open
4Subgrades. Worst defect leads.
PublishedDeterministic scoring formula
Photos onlyWe never hold the card

Weights

Four pillars. The worst defect leads.

22%

Centering

Leftover-space splits. 50 is perfect. The worse of L/R and T/B leads. ≤55/45 is required for a 10.

28%

Corners

Worst corner leads. A corner that is not visible scores 7. It is not assumed sharp.

26%

Edges

Worst edge leads. Wear, whitening, and layering are recorded, not guessed.

24%

Surface

Sixteen zones. A clean center does not hide a scratched corner of the art.

Scope

What this is — and is not

XGrade issues an evidence report

Front photo required. Back strongly recommended. Fifty-two checkpoints. Per-corner scores. A deduction ledger. Evidence percent. Hard caps printed on the face of the certificate.

The sentence on every certificate: Based on the photos the submitter provided, XGrade assesses this card as [number]. We only see what we are shown. The card may have flaws that are not visible in these photos.

XGrade is not a slab house

We do not take possession of cards. We do not authenticate them. We do not encapsulate them. We are not PSA, BGS, CGC, SGC, or TAG, and we are not affiliated with them.

We do not headline CERTIFIED GEM MINT 10, Official grade, or hologram language. The verb is assess.

Discipline

How we are stricter than a typical AI pre-grade app

  • We do not sell a lone AI number. We sell a record you can audit.
  • The model does not pick the grade. scoreInspection() is deterministic and published.
  • Unseen corners score 7, not 10.
  • Without a photo of the back of the card, we will not issue above 9.
  • Glare, sleeves, soft focus, and low evidence are hard caps on the certificate — not buried in Terms.
  • Gem 10 is rare on purpose. All four corners visible and 10, all subgrades 10, front ≤55/45, back ≤75/25, evidence ≥ 90%, no glare, no sleeve, excellent both-side photos.
  • We do not claim 92.8% accuracy. Accuracy comes from refusing to guess.
  • The projected professional range is where a slab house is most likely to land on the physical card. It is not a hedge on the XGrade assessment.

Scale

Integer grade table

NumberLabelMeaning
10Gem visibleExcellent unsleeved both-side photos. All gem rules met.
9MintStrong visible condition, or a hard photo cap at 9.
8NM-MTNear-mint to mint. Noticeable but limited wear or incomplete evidence.
7NMNear mint. A non-visible corner scores 7. Wrinkle or wax stain caps here.
6EX-MTExcellent-mint. A crease caps at 6.
5EXExcellent. Heavy centering or rounded corners.
4VG-EXWriting on the card caps at 4.
3VGVery good. Tear or hole caps at 3.
2GGood. Heavy, obvious wear in the photos.
1PRPoor. The photos show a card that is largely compromised.

Half steps (9.5 Mint+, 8.5 NM-MT+, and so on) are published on the protocol.

Collectors

Should you spend slab-house money on this card? Read the evidence first. Incomplete photos cannot hide behind a gem headline.

Collectors and dealers

How to photograph

Even light. Unsleeved. Square to camera. All four corners in frame. Front and back. Glare and soft focus cap the number.

Photo checklist

Compared

How XGrade differs from a fast AI pre-grade and from mailing a card to PSA, BGS, CGC, SGC, or TAG.

Read the comparison