Grade Matrix
Graded
PSA 6
-
Grade 7 guide
-
Grade 8 guide
$7
Grade 9 guide
$15
PSA 10
$500
PSA 10: 1 sale, last 45 days · Oct 11, 2026 · checked Oct 25, 2026
Grade 9: No recent PSA 9 sales. PriceCharting Grade 9 guide, mixing PSA, CGC, BGS, SGC and TAG 9s.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
CGC
CGC 8
-
CGC 9
-
CGC 10
$44
CGC P10
-
Availability
Availabilityi
6/10G: —
Graded: insufficient data · Sales per year: ~123 sales/yr · Recent sales: 2 PSA 10 comps · Raw recent sales: 60 · Grade 9 recent sales: 10 · PSA 10 recent sales: 9 · Graded copies: 98
TCGplayer Price History
HolofoilProduct 170032Fetched Oct 21, 3:48 AM
Weekly market
$3.78
week ending Oct 20
Weekly avg sale
$3.99
week ending Oct 20
Units sold (week)
1
week ending Oct 20
Card Value FAQ
How much is Thundurus GX (Promo #SM133) worth?
GemDelta shows Thundurus GX (Promo #SM133) at $3.77 market price (TCGplayer market). Its Delta multiple is 133x.
How much is a PSA 10 Thundurus GX (Promo #SM133) worth?
A PSA 10 Thundurus GX (Promo #SM133) is currently shown at $500, the only PSA 10 sale in the last 45 days (Oct 11, 2026).
Is Thundurus GX (Promo #SM133) worth grading?
GemDelta records a 31.6% gem rate for Thundurus GX (Promo #SM133), with 31 PSA 10 copies out of 98 total PSA grades and a 133x Delta. That describes the grading profile; it is not financial advice.
PSA 10 Recent sales
| Date | Listing | Sale |
|---|---|---|
| Oct 11, 2026 | 2018 Pokemon Thundurus GX SM133 Black Star Promo Nature GX Premium Coll PSA 10 #SM133 | $500.00 |
| Aug 9, 2026 | 2018 POKEMON SM BLACK STAR PROMO #SM133 THUNDURUS GX PSA 10 #SM133 | $130.20 |
| May 5, 2026 | 2018 POKEMON SM BLACK STAR PROMO #SM133 THUNDURUS GX PSA 10 #SM133 | $180.00 |