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Black Diamond Grading Co.
Card Grading Services

Welcome to Black Diamond Grading Co!
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We are a sports card memorabilia grading company, offering alternative affordable pricing to grade your cards!
We currently only grade standard sports cards, with sizing up to 2.5" wide x 3.5".
WHAT OUR CUSTOMERS ARE SAYING
WHAT OUR CUSTOMERS ARE SAYING
Thank you guys for your services at low prices!
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