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AgentGrail/baseball/Players/Thomas Diamond

Thomas Diamond Cards

The complete Thomas Diamond checklist: 10 cards — cards spanning 2004–2010, 1 rookie card, 3 autographs.

Data updated July 13, 2026.

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Frequently Asked Questions about Thomas Diamond Cards

Does Thomas Diamond have a rookie card?
Yes. The AgentGrail catalog includes 1 Thomas Diamond rookie card across this set. Rookie cards are among the most sought-after Baseball cards for collectors and investors.
What years were Thomas Diamond cards made?
The AgentGrail catalog includes Thomas Diamond cards from 2004 through 2010, totaling 10 cards across all sets and brands. The earliest cards date from 2004 and the most recent are from 2010.
Are there Thomas Diamond autograph cards?
Yes. The catalog includes 3 Thomas Diamond autograph cards. Autographed cards are typically the most valuable Thomas Diamond cards in a set and can command significant premiums in graded condition.
What sets include Thomas Diamond cards?
Thomas Diamond cards appear in numerous sets, including Bowman Draft Picks & Prospects, Bowman, Bowman Chrome, and 2 more. The full checklist on this page lists every set in the AgentGrail catalog.
Where can I buy Thomas Diamond cards?
eBay is the largest marketplace for Thomas Diamond baseball cards, offering both raw and graded (PSA, BGS, SGC) copies. Use the "Find on eBay" buttons on this page to search current listings. For investment-grade copies, look for PSA 10 certified cards.

Answers are grounded in AgentGrail catalog data and recent eBay market comps.

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Compiled by the AgentGrail team · Data refreshed July 13, 2026