Frank Thomas Quadruple #20 · Upper Deck Black Diamond (1999) | PopHunter

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Frank Thomas

Name: Frank Thomas
Brand: Baseball
SKU: cmqet3iq69no8z814az4yhq5q

Quadruple

Upper Deck Black Diamond · #20 · 1999

Parallel:QuadrupleBase

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Estimated Market Value · Raw

Estimate

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Where this card's market sits right now — modeled from its real sales and the movement of comparable markets.

PSA 10 $

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PSA 10 Pop

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Gem Rate

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30D Change

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Market data as of Jul 6, 2026

Opportunity

56.0

Collector

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Investor

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Speculation

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See pricing to unlock Collector, Investor & Speculation scores

Market

PSA10 / PSA9

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Active Listings

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PSA10 Mkt Cap

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PSA 10 Price

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30D PSA10

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90D PSA10

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Raw Price

$218

30D Raw

0.0%

90D Raw

0.0%

Prices by Grade & Grader

No pricing data available.

Population Reports

PSA Population

3 total

PSA 10

PSA 9

PSA 8

PSA 7

PSA 6

PSA 5

PSA 4

PSA 3

PSA 10 Price

PSA 9 Price

PSA 10 Population

Total Population

Opportunity Score

Active Listings

Recent Sales

Date	Grade	Price	Platform	Title
Jul 10, 2025	Ungraded	$218	ebay	1999 UD Black Diamond Quadruple Green Emerald #20 Frank Thomas HOF 114/150
Apr 17, 2021	Ungraded	$170	ebay	1999 UD Black Diamond QUADRUPLE Emerald GREEN QUAD Frank Thomas SP 112/150 #20

Similar Opportunities

Other Parallels

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Frank Thomas #20 #20

1999 · Upper Deck Black Diamond

Same Player

PopHunter surfaces potentially undervalued scarcity and relative value signals. This is not financial or investment advice. Always do your own research before purchasing graded cards.