Explore the 1990 Topps #781 Mario Diaz baseball card featuring the Seattle Mariners. This vintage sports card is a key addition for collectors building their 1990 Topps set.
Estimated delivery October 1, 2026 - October 3, 2026
30-day Returns
Market & Price History
Prices Captured Sep 21, 2026
Condition
Value
Source
Trend
Price Details
$1.45
Asking Prices
0%
Based on eBay Active Listings · 23 observations
Estimate: $1.45, based on Asking Prices.
Guide Estimate: $1.08. Evidence date not available.
Asking Prices: $1.45. Evidence date: Sep 21, 2026.Lowest observed item price: $0.99; shipping and tax excluded.Lowest observed item plus quoted shipping: $0.99, among 26 offers with known shipping; tax excluded.
Asking prices are unsold offers, not completed sales. Repeated observations do not establish additional buyer demand.Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $1.45 to $1.45 across 2 capture days. Change between Sep 3, 2026 and Sep 21, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$91.00
Guide Estimate
0%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $91.00, based on Guide Estimate.
Source date not available
Guide Estimate: $91.00. Evidence date not available.
Few comparable observations are available, so this estimate may be less reliable.
Over the last 30 days, stored prices ranged from $91.00 to $91.00 across 2 capture days. Change between Sep 3, 2026 and Sep 21, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$42.00
Guide Estimate
0%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $42.00, based on Guide Estimate.
Source date not available
Guide Estimate: $42.00. Evidence date not available.
Few comparable observations are available, so this estimate may be less reliable.
Over the last 30 days, stored prices ranged from $42.00 to $42.00 across 2 capture days. Change between Sep 3, 2026 and Sep 21, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$69.95
Guide Estimate
0%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $69.95, based on Guide Estimate.
Source date not available
Guide Estimate: $69.95. Evidence date not available.
Few comparable observations are available, so this estimate may be less reliable.
Over the last 30 days, stored prices ranged from $69.95 to $69.95 across 2 capture days. Change between Sep 3, 2026 and Sep 21, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$42.00
Guide Estimate
0%
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $42.00, based on Guide Estimate.
Source date not available
Guide Estimate: $42.00. Evidence date not available.
Few comparable observations are available, so this estimate may be less reliable.
Over the last 30 days, stored prices ranged from $42.00 to $42.00 across 2 capture days. Change between Sep 3, 2026 and Sep 21, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$1.45
Source
Asking Prices
Trend
0%
Price Details
Based on eBay Active Listings · 23 observations
Estimate: $1.45, based on Asking Prices.
Guide Estimate: $1.08. Evidence date not available.
Asking Prices: $1.45. Evidence date: Sep 21, 2026.Lowest observed item price: $0.99; shipping and tax excluded.Lowest observed item plus quoted shipping: $0.99, among 26 offers with known shipping; tax excluded.
Asking prices are unsold offers, not completed sales. Repeated observations do not establish additional buyer demand.Supported by the available observations, but not a guaranteed sale price.
Over the last 30 days, stored prices ranged from $1.45 to $1.45 across 2 capture days. Change between Sep 3, 2026 and Sep 21, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$91.00
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $91.00, based on Guide Estimate.
Source date not available
Guide Estimate: $91.00. Evidence date not available.
Few comparable observations are available, so this estimate may be less reliable.
Over the last 30 days, stored prices ranged from $91.00 to $91.00 across 2 capture days. Change between Sep 3, 2026 and Sep 21, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$42.00
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $42.00, based on Guide Estimate.
Source date not available
Guide Estimate: $42.00. Evidence date not available.
Few comparable observations are available, so this estimate may be less reliable.
Over the last 30 days, stored prices ranged from $42.00 to $42.00 across 2 capture days. Change between Sep 3, 2026 and Sep 21, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$69.95
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $69.95, based on Guide Estimate.
Source date not available
Guide Estimate: $69.95. Evidence date not available.
Few comparable observations are available, so this estimate may be less reliable.
Over the last 30 days, stored prices ranged from $69.95 to $69.95 across 2 capture days. Change between Sep 3, 2026 and Sep 21, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
$42.00
Source
Guide Estimate
Trend
0%
Price Details
Based on Aggregated Price GuideGuide grade mapping; not verified grader-specific sales
Estimate: $42.00, based on Guide Estimate.
Source date not available
Guide Estimate: $42.00. Evidence date not available.
Few comparable observations are available, so this estimate may be less reliable.
Over the last 30 days, stored prices ranged from $42.00 to $42.00 across 2 capture days. Change between Sep 3, 2026 and Sep 21, 2026: 0%. Compares the same source, grade and signed status. Capture days are not completed-sale counts.
Each point is the last stored observation that day for this printing, condition, grader, autograph status and source. Gaps mean no observation; guide estimates and asking prices are not completed sales.
Product Overview
Description
The 1990 Topps #781 Mario Diaz baseball card represents a specific moment in the history of the Seattle Mariners and the broader baseball card industry. For collectors, this card number serves as a concrete anchor in the vast landscape of vintage sports memorabilia, offering a tangible connection to the Seattle Mariners roster from that era. Mario Diaz, featured on card #781, is a notable entry for those tracking the depth of rosters and the career paths of players who may not have achieved widespread fame but remain integral to the team's history. Collectors often seek out specific card numbers to complete their base set, and this Mario Diaz card fills a distinct slot in the 700-card series. Owning a piece of the 1990 Topps release allows enthusiasts to preserve a slice of baseball heritage. Whether you are a dedicated Mariners fan, a vintage card investor, or a hobbyist looking to add a unique piece to your portfolio, this card offers a blend of nostalgia and historical significance. The 1990 Topps brand remains a benchmark for quality and design in the sports card market, and card #781 stands as a testament to the enduring appeal of this iconic release.
Last Listing Activity
9/19/26
Seller Action
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Product Specs
Card Details
The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.
Estimated delivery October 1, 2026 - October 3, 2026
Collector Ownership
Owned by Collectors
See how many public collections currently include this card.
0 collectors have this card
SuperCatch Expert Analysis
Market Value Insight
This 1990 Topps Mario Diaz card sits firmly in the entry-level tier for Seattle Mariners memorabilia, reflecting the broader market for players with limited career longevity. As a standard base card from a major mass-produced set, it does not command a premium over typical rookie or star player issues from the same era. Its current positioning is consistent with high-supply, low-demand collectibles where condition and centering play a minor role in valuation compared to star power.
Rarity Breakdown
The card lacks any special scarcity attributes such as serial numbering, short-print status, or parallel finishes, meaning it is a standard base issue from the 1990 Topps set. This implies an abundant supply relative to collectors, as no limiting mechanics were applied to its production. Consequently, it trades at the baseline value for ungraded or raw examples from this specific product line.
Investment Outlook
Investment potential is limited due to the absence of rookie-card status or significant career achievements that typically drive collector demand. The combination of a mass-produced base card and a player who did not achieve long-term stardom results in minimal upside for appreciation. Collectors interested in this item are likely motivated by personal team affinity rather than speculative value growth.
