Crown Authority Card Grading
Your Cards. Our Crown.
Professional grading and authentication for sports and non-sports trading cards.
Halloween Special Offer
Get your cards professionally graded and authenticated.
3 Cards for $25
Limited-time Halloween offer — ends November 2nd. Authentication included where applicable.
- Professional grading on the CA 1–10 scale
- Card authentication included where applicable
- Secure slab encapsulation
- Grade label with card details
Regular grading: $10 per card. Have questions? Contact us directly.
How It Works
Download the Form
Download and print the Crown Authority submission form from the Submit Your Cards page.
Package Your Cards
Sleeve and top-load each card securely. Place the completed form inside the package.
Ship to Us
Payment must be submitted prior to mailing your cards. Once payment is confirmed, send your package to the address on the submission form. The customer is responsible for all inbound shipping, outbound shipping, and insurance costs.
Receive Your Slabs
Your graded cards are encapsulated in a secure slab and returned to you.
What Collectors Are Saying
Real feedback from collectors who trust Crown Authority with their cards.
Great company! Very professional, with the best prices around. The turnaround time was fast, and the slabs look awesome! They even gave me a Certificate of Authenticity!! I will definitely be going with this company from now on. Big thanks to the guys at Crown Authority!
John F.
Crown Authority graded my Mahomes rookie and the slab looks incredible. Fast turnaround and the grade was exactly what I expected. Highly recommend.
Marcus T.
Providence, RI
I was nervous sending in my vintage Pokémon cards but the packing instructions were clear and everything came back perfectly. The Crown label looks premium.
Jenna R.
Boston, MA
🎃 Halloween Special
3 Cards for $25
Limited-time offer — ends November 2nd. Authentication included where applicable. Regular grading: $10 per card.