Instructions to Use Your MJ Holding Mystery Box Grading Coupon

Posted on 10/27/2025

First time grading with CGC? Follow the simple steps below to complete your submission.

Thank you for your interest in grading with CGC!

To use your grading coupon found in the MJ Holding Mystery box, please follow these instructions:

  1. Sign up for a free or paid membership here
  2. Fill out our online submission form (Use Quick Submit to save time!)
  3. Use code CGCCARDS2025 at checkout

Terms & Conditions

  • One-time use only
  • Discount applies to grading fees only, and does not include JSA autograph services, add-on services or shipping fees
  • Limited to card submissions
  • Cannot be used with any other offers
  • Expires December 31, 2025

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