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Grade Matrix

Graded
PSA 6
$12
Grade 7 guide
$12
Grade 8 guide
$20
PSA 9
$24
PSA 10
$158

PSA 10: Median of 2 sales, last 45 days · newest Oct 16, 2026 · checked Oct 26, 2026

PSA 9: Median of 9 PSA 9 sales in the last 90 days, latest 2026-10-25. Grade 9 guide (all graders): $26.

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

CGC
CGC 8
-
CGC 9
-
CGC 10
$23
CGC P10
$44

Availability

Availabilityi
8/10G: 12/y
In stocki
High
93 copies listed NM on TCGplayer as of Oct 27, 2026
Graded: ~12 sales/yr (low) · Sales per year: ~313 sales/yr · Recent sales: 2 PSA 10 comps · Raw recent sales: 60 · Grade 9 recent sales: 30 · PSA 10 recent sales: 30 · 93 NM depth refiner · Graded copies: 1,036

TCGplayer Price History

HolofoilProduct 274453Fetched Oct 20, 3:56 AM
Weekly market
$1.97
week ending Oct 19
Weekly avg sale
$1.50
week ending Oct 19
Units sold (week)
35
week ending Oct 19

Card Value FAQ

How much is Blastoise (Go #17) worth?

GemDelta shows Blastoise (Go #17) at $1.75 market price (TCGplayer market). Its Delta multiple is 90.0x.

How much is a PSA 10 Blastoise (Go #17) worth?

A PSA 10 Blastoise (Go #17) is currently shown at $158, the median of 2 PSA 10 sales in the last 45 days (newest Oct 16, 2026).

Is Blastoise (Go #17) worth grading?

GemDelta records a 17.3% gem rate for Blastoise (Go #17), with 179 PSA 10 copies out of 1,036 total PSA grades and a 90.0x Delta. That describes the grading profile; it is not financial advice.

PSA 10 Recent sales