AI Appraisal Estimate

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Submitted item photo
Submitted photo · June 4, 2026

User's notes

Trevon Diggs

AI analysis below

AI appraisal

AI analysis & estimate

AI-Generated · Verify before acting

Everything below is generated by AI for informational purposes only. AI can make mistakes — the AI may misidentify items or misattribute them (artist, maker, brand, designer, origin, era). This is not an official valuation and should not be used for insurance, sale, tax, estate, legal, or lending purposes — or any decision requiring a certified appraisal. It is not an authoritative claim about any person, brand, or rights holder — do not share or rely on it as a factual statement about a third party. Always consult qualified professionals before making financial decisions.

Note

This analysis also relies on unverified notes provided by the user, which may be incomplete or inaccurate and could affect the result.

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AI Identification

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Trevon Diggs Autographed Dallas Cowboys Riddell Speed Mini Helmet

Sports Memorabilia / Signed Collectibles

AI Estimated Value

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$135 - $175

As of June 4, 2026

AI Item Analysis

·AI can make mistakes·Verify before acting
This item is a Riddell Speed model mini football helmet featuring the official branding of the Dallas Cowboys. The helmet boasts a metallic silver-matte finish shell adorned with the team's iconic blue and white star logo on the sides and navy blue-white-navy stripes running down the center. It includes a grey-colored plastic facemask, internal padding detail visible through the top, and a white chin strap. A critical value-driving feature is the hand-signed autograph in black permanent marker located on the right side of the helmet shell, attributed to star cornerback Trevon Diggs. The helmet is housed in its original clear plastic 'clamshell' display packaging, which sits atop a cardboard base labeled 'Riddell Mini Helmet'. On the bottom left of the helmet, an official NFL holographic security sticker is visible, indicating authentic league licensing. The condition appears to be 'New in Box' or 'Mint', with no visible scuffs on the helmet surface or yellowing of the signature, which remains bold and crisp. The item is shown resting on a product box for 'Just Breaker' or a similar sports memorabilia breaking service, suggesting it was recently obtained through a professional commercial channel. This contemporary collectible represents modern sports memorabilia from the 2020s era of NFL football.

AI Appraisal Report

·AI can make mistakes·Verify before acting
I have virtually examined this Trevon Diggs autographed Dallas Cowboys Riddell Speed Mini Helmet. The item appears in 'Mint' condition, featuring a bold, black ink signature on a metallic-matte silver shell. The signature shows no evidence of fading, 'skipping', or ink bleeding. As a star cornerback and high-profile Dallas Cowboy, Diggs maintains a strong market presence, though defensive player values generally trail behind quarterbacks and wide receivers. Market analysis shows that authenticated Diggs mini helmets currently retail between $150 and $200 through major distributors like Fanatics or Beckett Marketplace. Second-hand market realized prices typically fluctuate between $120 and $160 depending on the presence of a COA. The 'Speed' model is generally more desirable than the 'VSR4' style due to its modern aesthetic. The primary limitation of this appraisal is the lack of visible third-party authentication (e.g., PSA/DNA, JSA, or Beckett). While an NFL holographic sticker is visible, this typically certifies the helmet's licensing rather than the autograph itself. Without a matching COA card or a verifiable database serial number, the value rests at the lower end of the range. To definitively confirm the value at the premium level, a physical inspection is required to verify the ink’s ‘dabbing’ and flow characteristics to rule out autopens or high-quality stamps. I recommend submitting this item to a reputable third-party authenticator to secure a 'Cert' number, which would maximize liquidity and value in the sports collectible market.

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