Φ

Φ is a science-based card grading service developed and operated by a PhD scientist in Toronto, Canada. Where traditional grading relies on human visual inspection, Φ uses objective, reproducible measurements to evaluate and rank your card.

What Φ measures

Built on laboratory-grade 3D surface scanning technology and rigorous statistical analysis, Φ measures: + Surface and edge quality: indentations, scratches, irregular reflections, and print defects quantified at micrometer resolution. + Centering and alignment: measured at ~0.09–0.17mm precision. These are combined into a composite, multi-dimensional Φ score that captures your card’s condition.

What you get

• Φ scores for surface, edge, and overall condition. locked at the time of grading.
• A permanent, publicly accessible webpage with your card’s unique ID, full metrics, and figures. Shareable with friends, vendors, and potential buyers.
• A continuous rank score against all graded cards in the dataset. More precise and transparent than a binned grade (e.g., 8, 9.5, 10).
• Automatic rank updates as the dataset grows. No re-submission or additional fees, ever.

How Φ works

1. Ship your card to our facility in Toronto, Canada — or arrange a local drop-off if you’re in the Toronto area.
2. Your card is 3D scanned using specialized research equipment and processed through our analytical pipeline.
3. Results are quality-controlled by a PhD scientist, summarized, and published permanently online You receive a link to your card’s dedicated webpage.
4. Preservation: After scanning, cards are sealed in water and dust-proof magnetic card holders with a unique card ID and two tamper-evident labels.

Pricing & turnaround

• $70 CAD + 13% HST per card
• $20 flat rate tracked shipping within North America
• Turnaround: 7–14 business days depending on volume
• No surcharges. No hidden fees.

How to apply

Fill out this form to submit your card for grading. You will be contacted with next steps within 1 to 2 business days.

Contact

For grading inquiries or to discuss purchasing a listed card, contact phi.grading[at]gmail.com. No fees or commissions apply to card sales.

A footnote on rankings

Rankings are periodically recalculated as new cards are added to the dataset, ensuring every card is always evaluated against the most current methodology — applied consistently and fairly across all graded cards, at no additional cost.