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Grade Matrix

Graded
PSA 6
$10
Grade 7 guide
$11
Grade 8 guide
$28
PSA 9
$240
PSA 10
$375

PSA 10: Median of 2 sales, last 45 days · newest Oct 22, 2026 · checked Oct 26, 2026

PSA 9: Median of 1 PSA 9 sale in the last 90 days, latest 2026-09-23. Grade 9 guide (all graders): $109.

Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).

CGC
CGC 8
-
CGC 9
$25
CGC 10
$56
CGC P10
-

Availability

Availabilityi
8/10G: 3/y
Graded: ~3 sales/yr (extremely low) · Sales per year: ~94 sales/yr · Recent sales: 2 PSA 10 comps · Raw recent sales: 53 · Grade 9 recent sales: 11 · PSA 10 recent sales: 13 · Graded copies: 892

TCGplayer Price History

NormalProduct 107070
No Normal price series for this product. Available: 1st Edition, Unlimited.

Card Value FAQ

How much is Imposter Professor Oak (Base Set #73) worth?

GemDelta shows Imposter Professor Oak (Base Set #73) at $22.99 market price (PriceCharting raw (eBay sold fallback)). Its Delta multiple is 16.3x.

How much is a PSA 10 Imposter Professor Oak (Base Set #73) worth?

A PSA 10 Imposter Professor Oak (Base Set #73) is currently shown at $375, the median of 2 PSA 10 sales in the last 45 days (newest Oct 22, 2026).

Is Imposter Professor Oak (Base Set #73) worth grading?

GemDelta records a 20.5% gem rate for Imposter Professor Oak (Base Set #73), with 183 PSA 10 copies out of 892 total PSA grades and a 16.3x Delta. That describes the grading profile; it is not financial advice.

PSA 10 Recent sales

DateListingSale
Oct 22, 20261999 Pokemon Base Set 73/102 Shadowless Imposter Professor Oak Edition PSA 10 073/102$429.99
Oct 3, 20261999 Pokemon Base Set 73/102 Shadowless Imposter Professor Oak Edition PSA 10 073/102$320.00
Jul 9, 2026POKEMON BASE SET IMPOSTOR PROF. OAK 1999 #73 SHADOWLESS PSA 10 #73$334.00
Jul 3, 20261999 Pokemon Base Set 73/102 Shadowless Imposter Professor Oak Edition PSA 10 073/102$480.00