GemDelta
Dashboard

Grade Matrix

Graded
PSA 6
-
Grade 7 guide
$6
Grade 8 guide
$7
PSA 9
$40
PSA 10
$268

PSA 10: PriceCharting · last PSA 10 sale $380.00 on Jul 28, 2026 · checked Oct 26, 2026

PSA 9: Median of 1 PSA 9 sale in the last 90 days, latest 2026-09-27. Grade 9 guide (all graders): $33.

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

CGC
CGC 8
-
CGC 9
-
CGC 10
$16
CGC P10
-

Availability

Availabilityi
2/10G: —
Graded: insufficient data · Sales per year: ~71 sales/yr · Recent sales: 1 PSA 10 comp · Raw recent sales: 58 · Grade 9 recent sales: 7 · PSA 10 recent sales: 4 · Graded copies: 32

TCGplayer Price History

NormalProduct 90158Fetched Oct 26, 3:41 AM
Weekly market
$6.57
week ending Oct 25
Weekly avg sale
$0.00
week ending Oct 25
Units sold (week)
0
week ending Oct 25

Card Value FAQ

How much is Undersea Ruins (Aquapolis #138) worth?

GemDelta shows Undersea Ruins (Aquapolis #138) at $6.57 market price (TCGplayer market). Its Delta multiple is 40.9x.

How much is a PSA 10 Undersea Ruins (Aquapolis #138) worth?

A PSA 10 Undersea Ruins (Aquapolis #138) is currently shown at $268. GemDelta labels this as a PriceCharting guide fallback rather than verified recent sales.

Is Undersea Ruins (Aquapolis #138) worth grading?

GemDelta records a 37.5% gem rate for Undersea Ruins (Aquapolis #138), with 12 PSA 10 copies out of 32 total PSA grades and a 40.9x Delta. That describes the grading profile; it is not financial advice.

PSA 10 Recent sales

DateListingSale
Jul 28, 2026Pokemon Aquapolis - Undersea Ruins 138/147 - PSA 10 Gem Mint Pop 12 138/147$380.00