AUTHENTIC MLB MEMORABILIA

Signed baseballs, jerseys, bats, and cards from every era — legends, Hall of Famers, and today’s biggest stars. Every item authenticated and guaranteed.

MLB Baseball Memorabilia: Authentic Signed Baseballs, Autographed Jerseys, Baseball Cards & Collectibles from Every Team

Shop by Team

Browse 30 MLB teams

  • Authenticity Guaranteed

    COA with every item

  • Pay Over Time

    Flexible payment options

  • 60-Day Returns

    Hassle-free guarantee

Guaranteed Authentic

Every item verified by industry-leading authentication partners

1

Certificate of Authenticity

Every item includes a COA from a trusted authentication partner

2

Tamper-Evident Hologram

Unique hologram sticker verifiable through authentication databases

3

Six Auth Partners

JSA, Beckett, PSA, Fanatics, Steiner Sports & more

✔ 60-Day Money-Back Guarantee

Trading Cards

PSA, BGS & SGC graded cards and raw

Baseball Cards

Own a Piece of Baseball History

26,000+ authenticated MLB collectibles from all 30 teams

Pristine Marketplace carries one of the largest selections of authenticated MLB memorabilia online — over 26,000 items spanning all 30 teams, from Yankees and Dodgers signed collectibles to rare Babe Ruth and Mickey Mantle pieces. Every autographed baseball, signed jersey, game-used bat, and graded card ships with a Certificate of Authenticity backed by our six authentication partners including JSA, Beckett, PSA, and Fanatics.

Founded in 2010 and operating from two facilities totaling over 60,000 square feet in Phoenix, Arizona, our team of 150+ employees inspects, authenticates, and ships thousands of collectibles every week. Whether you’re a lifelong collector adding a Derek Jeter signed ball to your display case, picking up your first Shohei Ohtani autograph, or searching for the perfect gift for a baseball fan, we back every purchase with a 60-day money-back guarantee and flexible payment options.

Frequently Asked Questions

How do you authenticate your MLB memorabilia?

Every item is verified through our in-house authentication arm, Pristine Authentic, plus six industry-leading third-party partners: JSA (James Spence Authentication), Beckett Authentication (BAS), PSA, Fanatics, Steiner Sports, and MLB Hologram. Each piece receives a tamper-evident hologram and Certificate of Authenticity before it ships. Our A+ BBB rating and over 9,000 verified Trustpilot reviews reflect that commitment.

Are signed baseballs a good investment?

Authenticated autographed baseballs from Hall of Famers and retired legends tend to appreciate over time, especially when the supply is fixed. Items signed by players like Willie Mays, Hank Aaron, and Ted Williams have shown consistent long-term value growth. Active stars like Aaron Judge and Shohei Ohtani are popular with collectors betting on future Hall of Fame careers. The key is authentication — only buy from reputable dealers who provide verifiable COAs.

What types of MLB memorabilia do you sell?

We carry autographed baseballs (including inscribed and game-used), signed jerseys (custom framed and unframed), signed bats, autographed photos (framed 16x20s and 8x10s), graded trading cards (PSA, BGS, and raw), and game-used memorabilia. Items range from under $100 to museum-quality investment pieces.

What is your return policy on signed memorabilia?

We offer a 60-day money-back guarantee on every item, no questions asked. If you’re not completely satisfied with your purchase, return it within 60 days for a full refund. We also offer flexible payment options so you can spread the cost of higher-value pieces across monthly installments.

Which MLB players have the most valuable autographs?

Among the most sought-after signatures are Babe Ruth, Mickey Mantle, and Joe DiMaggio — their limited supply makes authenticated pieces especially valuable. Ken Griffey Jr., Nolan Ryan, and Derek Jeter remain highly collectible among retired stars. For current players, Shohei Ohtani and Aaron Judge autographs are among the fastest-moving items in our inventory.