Features

Professional grading intelligence, built for decisions.

Computer vision that inspects every category, predicts PSA and Beckett grades, and shows you exactly what matters before you submit.

<30s

Average analysis time

PSA + BGS

Dual grading standards

4+

Independent category scores

PDF

Printable professional reports

Analysis

Trusted Card Analysis

Every grading category evaluated independently with computer vision built for professional standards.

Centering

Measures left-right and top-bottom borders with sub-millimeter precision.

Corners

Detects whitening, soft tips, and structural wear on every corner.

Edges

Analyzes chipping, wear, and print line consistency along all four edges.

Surface

Identifies scratches, print defects, stains, and surface imperfections.

Print Quality

Evaluates registration, color fidelity, and factory print anomalies.

Coming Soon

Authenticity

AI-assisted counterfeit detection trained on verified authentic cards.

Technology

Inspect every grading category

Each analysis layer isolates a different part of the card — corners, edges, centering, and surface — with lab-grade precision.

01

Corner Analysis

Pixel-level detection of whitening, rounding, and structural damage across all four corners.

  • Soft tip and whitening detection
  • Independent scoring per corner
  • Matches PSA and Beckett standards
1989 Upper Deck Ken Griffey Jr. rookie card

02

Edge Inspection

Continuous edge scanning identifies chipping, print lines, and wear with grading-lab accuracy.

  • Full perimeter edge tracing
  • Chip and print-line detection
  • Wear severity mapping
Topps Kobe Bryant rookie card

03

Centering Measurement

Precise border ratio calculations matching PSA and Beckett centering standards.

  • Left-right and top-bottom ratios
  • Sub-millimeter border precision
  • Lab-aligned centering grades
1987 Topps Bo Jackson Super Rookie card

04

Surface Scanning

Heatmap visualization of scratches, stains, and print defects invisible to the naked eye.

  • Scratch and stain heatmaps
  • Print defect highlighting
  • Surface cleanliness score
1989 Upper Deck Ken Griffey Jr. rookie card

Platform

Everything you need before you submit

From dual-standard predictions to market estimates — GemMint turns a photo into a decision-ready grading brief.

Dual-standard predictions

Get PSA and Beckett grade estimates from the same scan so you can compare labs before you submit.

Confidence scoring

Every prediction includes a confidence score so you know when the model is certain — and when to look closer.

Damage heatmaps

Visual overlays highlight scratches, whitening, and surface issues that are easy to miss by eye.

Submission guidance

Clear recommendations help you decide whether a card is worth grading fees — before you spend.

Market value estimates

Pair predicted grades with estimated market ranges to prioritize the highest-ROI cards in your collection.

Centering precision

Border ratios measured to lab standards so left-right and top-bottom centering are never a guess.

Report

A grading report built for decisions

Printable, shareable, and precise — designed to look like it came from a professional lab.

GemMint grading report for a 1989 Upper Deck Ken Griffey Jr. card

Features FAQ

How GemMint analysis works.

Answers about categories, reports, and what you get with every scan.

Know Before You Grade.

Professional AI card grading powered by advanced computer vision — predict PSA and Beckett in under 30 seconds.