Grade Matrix
PSA
PSA 6
-
PSA 7
$4
PSA 8
$5
PSA 9
$6
PSA 10
$42
PSA 10: PriceCharting; last PSA 10 sale May 1, 2026
CGC
CGC 8
-
CGC 9
-
CGC 10
$8
CGC P10
-
Availability
Availabilityi
7/10G: —
Graded: insufficient data · Sales per year: ~274 sales/yr · Recent sales: 3 PSA 10 comps · Graded copies: 7 · PSA-10 delta 1.1%
TCGplayer Price History
HolofoilProduct 451804Fetched Sep 9, 4:00 AM
TCGplayer market
$0.39
Latest avg sale
$0.29
Units sold
1,989
Card Value FAQ
How much is Forest Seal Stone (Silver Tempest #156) worth?
GemDelta shows Forest Seal Stone (Silver Tempest #156) at $0.39 market price (TCGplayer market). Its Delta multiple is 40.1x.
How much is a PSA 10 Forest Seal Stone (Silver Tempest #156) worth?
A PSA 10 Forest Seal Stone (Silver Tempest #156) is currently shown at $42.10. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
Is Forest Seal Stone (Silver Tempest #156) worth grading?
GemDelta records a 28.6% gem rate for Forest Seal Stone (Silver Tempest #156), with 2 PSA 10 copies out of 7 total PSA grades and a 40.1x Delta. That describes the grading profile; it is not financial advice.
PSA 10 Recent sales
| Date | Sale |
|---|---|
| May 1, 2026 | $49.46 |
| May 1, 2026 | $50.00 |
| Feb 28, 2026 | $13.50 |