Guide 03 / Card assessment · 7 minute read · Requirements checked 31 August 2026

Quick answer: To pre-grade a card, inspect it in a fixed order: overall front and back, centering, all four corners, all four edges, then the front and back surface under moving light. Record what you actually see, by location, and treat the result as a screening record, not a grade prediction.

Pre-grading is a structured inspection before you decide whether to pay for professional grading. It is not an unofficial certificate and it is not a reliable way to promise a particular number. A repeatable routine is more valuable than an unusually confident prediction.

Build a simple inspection station

Use a clean, uncluttered table away from drinks, food and direct sunlight. Put down a clean, smooth working surface that will not shed grit or catch an edge. Have fresh sleeves and suitable holders within reach before removing a card from protection.

Use broad, even light for the first inspection and a movable light for examining reflections. A modest magnifier can help you investigate a specific concern, but start with the whole card. Extreme magnification can make it difficult to judge the significance of a tiny feature in normal viewing.

A phone camera is useful for records. It is not a substitute for moving light across a physical surface; image sharpening, glare, compression and perspective can create misleading impressions.

Keep hands clean and dry. Handle the edges gently and support the card without bending it. General paper-conservation guidance emphasises careful handling, a clean environment and appropriate support; a social-media glove preference is not a universal grading requirement.

Identify the card before assessing its condition

Record the exact set, number, language and variant. Confirm whether the design is meant to be symmetrical and whether the finish is smooth, foil, textured or otherwise unusual.

An expected design element should not be mistaken for damage. Equally, something that may have occurred during manufacture should not automatically be excused. Grade the observation conservatively in your own notes and let the grading company apply its standards.

For unusual formats, older issues or cards with authentication concerns, check eligibility first. Do not perform destructive authenticity tests, scrape an edge or apply liquid to see how the ink behaves.

Use the same inspection order every time

A practical sequence is: overall front, overall back, centering, four corners, four edges, front surface, back surface and final record. Always complete the reverse inspection, even when the front is the main attraction.

Work on one card at a time. When the inspection ends, put that card back into appropriate protection before opening the next. This limits unnecessary handling and makes it harder to confuse two similar examples.

How to check card centering

Begin by asking whether the design appears balanced. When the card has a suitable printed frame, compare the left and right borders at the same height, then compare the top and bottom borders at the same horizontal position. Repeat on the reverse.

For a simple opposing-border calculation: Left share = left border ÷ (left border + right border) × 100. If the left border measures 3.0 mm and the right measures 2.5 mm, the split is approximately 54.5/45.5. That describes those measurements; it does not establish the card's grade.

A camera should be square to the card, because perspective distortion can make a balanced card appear off-centre. Do not drag a ruler across the surface or press a measurement tool into the edge. Measuring from a well-aligned image can be less intrusive, provided you recognise its limitations.

PSA's current Gem Mint 10 standard describes approximately 55/45 or better on the front and 75/25 on the reverse. Meeting that tolerance is only one part of the assessment, not an entitlement to a 10. Avoid applying old internet thresholds or another company's rules automatically.

For borderless or asymmetric designs, do not invent a measurement line simply because a centering calculator requires one. Record the uncertainty instead.

Inspect each corner from both sides

Move clockwise and inspect each corner individually. Look for rounding, bending, separation, exposed card stock and areas that catch the light differently. Use a low angle when a corner looks raised or compressed.

Distinguish the card from its sleeve. A cloudy patch or tiny crease in the plastic can look like damage underneath. When a closer look is necessary, remove the card carefully once rather than repeatedly sliding it in and out. Do not pinch a corner to test whether it is bent.

A useful note names the location: "Back, upper-right corner: small white point visible under broad light." That is more useful later than "corners look okay".

Follow the full length of every edge

Inspect the top, right, bottom and left edges on the front, then repeat on the back. Look for small chips, white areas (often called whitening), roughness, separation and uneven areas that deserve further investigation.

If an edge appears unusual, do not immediately call it trimmed or authentic. Document the concern and seek an appropriate professional assessment. Never rub an edge, colour a white spot or compress a raised area. Such actions change the object you are trying to evaluate and can affect the result under alteration rules.

Surface inspection: move the light, not just the card

Start with a broad view, then move a light so that a reflection travels across the front. Repeat horizontally, vertically and on the back. Look for scratches, scuffs, indentations, creases, residue, pressure marks and interruptions in the finish. On foil or textured cards, examine the reflective areas from several angles.

Do not flex the card to make a possible crease appear. A change in reflection can be investigated through light and viewpoint without bending the object. A tiny indentation can be difficult to photograph, so record where it is and what viewing angle reveals it.

Separate observations from explanations

What you can record What you should not assume
A fine line crosses the foil under angled light Every print line is ignored by every grader
A small white area is visible on the back edge Factory origin means it cannot affect the grade
The card has a gentle curve while resting naturally Pressing it flat is safe or permitted
One corner looks different from the others You know the exact grade deduction
No defect is obvious during your inspection A top grade is guaranteed

Do not invent a universal rule such as "one white dot means a 9". The size, nature and visibility of a feature matter, and the grading company makes the final determination.

Create a decision record, not a pretend certificate

For each card, record its identity, the date, front and back photographs, observed concerns, any unresolved question and your proposed action: submit, hold for further assessment, or keep raw.

Keep your observations even after the result arrives. Comparing them with returned grades and any available grader notes helps you learn where your inspection missed information.

Checklist: before grading

Check What to confirm
Identity The exact set, number, language, finish and variant are recorded.
Eligibility The selected grader accepts the exact category, format and language.
Workspace The work area and protection are clean; hands are clean and dry.
Front and back Both sides have been photographed and inspected.
Centering Alignment has been considered without treating a measurement as a guaranteed grade.
Corners Every corner has been examined from both sides.
Edges The whole perimeter has been inspected; concerns are described by location.
Surface Both faces have been viewed under more than one lighting angle.
Uncertainty Possible damage, unusual features or authenticity concerns are recorded, not guessed away.
No treatment No rubbing, chemicals, colouring, trimming, pressing or other grade-improvement treatment is planned.
Purpose The reason for grading is clear: collecting, authentication, presentation or resale.
Cost All additional grading-related costs and a realistic downside have been considered.
Decision Submit / hold / keep raw has been recorded, with a brief reason.
Protection The card has been returned to suitable protection without a forced fit.

Frequently asked questions

Can I pre-grade a card while it remains sleeved?

You can perform an initial screen through a clean sleeve, but reflections, sleeve scratches and trapped debris can obscure the card. Decide whether a closer inspection is worth the additional handling, and avoid repeated removal.

Should I use an app to predict the grade?

An app can assist with a limited task such as organising images or estimating border ratios. Treat its output as a tool result, not a grading-company decision. It may not reveal indentations, edge characteristics or authenticity issues.

What if the card looks perfect to me?

Record that no issue was obvious under your inspection conditions, then budget for uncertainty. Your conditions and experience are not identical to those used by a professional service.

Finish by protecting the card

Do not leave inspected cards exposed while deciding what to submit. Move each into suitable protection, such as a clean Base Card Sleeve, preserve the inventory order and continue with our preparation guide. A careful inspection should end without adding new damage.

Related guides

Sources and current requirements

Requirements checked 31 August 2026. Use the current official instructions for the service and route you select. Sources: Library of Congress - Care, Handling and Storage of Works on Paper; PSA - Grading Standards; CGC Cards - Grading Scale.

Grade Saver Pro is the grading sub-brand of Saver Pro. This is educational guidance, not a grading service or a promise of a result. No grading-company endorsement is implied.