COMC is thrilled to announce that we now accept all TAG (Technical Authentication & Grading) graded cards! TAG is known for their patented automated grading process, transparent (inscribed) slabs, and unprecedented range of tools to help you understand a card’s grade.
TAG cards receive a standard 1-10 grade prominently listed on the right side of the slab as well as a precise TAG Grade out of 1,000 which is visible on the card’s scannable TAG. The scannable TAG offers a comprehensive Digital Image and Grading (DIG) Report. This showcases the card’s position on the TAG Leaderboard and “digs” deep into its condition, detailing surface defects, centering measurements, corner and edge metrics, card population, chronology, and more. TAG also provides submission kits, high-res photographs of the finished slabs, and returns each slab in a sealed pack for a fun grade reveal. Learn more by visiting taggrading.com or following @taggrading on any social platform.
We hope you are as excited as we are to see your TAG cards on the COMC marketplace! Submit your TAG cards today for consignment at a fixed price or through our auction services!
TAG is the latest addition to a growing list of grading card companies accepted by COMC. Here is the up-to-date list of supported grading companies:
- TAG – Technical Authentication & Grading
- PSA – Professional Sports Authenticator
- SGC – Sportscard Guaranty
- BGS – Beckett Grading Services
- BVG – Beckett Vintage Grading
- BCCG – Beckett Collectors Club Grading
- KSA – KSA Certification
- CGC – Certified Guaranty Company
- CSG – Certified Sports Guaranty
- HGA – Hybrid Grading Approach (no PC Slabs)
COMC Consignment Services
Are you looking to sell your graded cards? When you consign with COMC, our team fully prepares and lists your cards on the COMC Marketplace and our eBay Store. Once sold, our team handles all of the shipping and fulfillment. To learn more about our consignment services, visit our COMC Selling page.
COMC Auctions on eBay
This service is ideal for sellers who wish to send their graded cards directly to the COMC eBay Store as a 7-day, $0.99 no-reserve auction. COMC Auctions on eBay are for cards valued at more than $50 and put your investment-grade trading cards in front of collectors and bidders worldwide. A complete list of the seller advantages to COMC Auctions on eBay, including the Commission structure, can be found on the Auctions Page.

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