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Blastoise GX #SM189 Pokémon card from Promo

Blastoise GX #SM189

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Blastoise GX #SM189 from Promo currently trades at $18.00 raw, with PSA 10 copies reaching $427.09 — a 23.7x grade premium. The card has moved up 2.1% over the past 30 days and up 10.1% over 90 days, suggesting sustained buying interest.
Current Prices (USD)
Ungraded
$18.00
PSA 7
$27.99
PSA 8
$33.28
PSA 9
$48.09
PSA 10
$427.09
ACE 10
$140.72
BGS 10 Black
$2,750.00
CGC 10 Pristine
$108.00
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Raw Price Trend
7d
+2.9%
30d
+2.1%
90d
+10.1%
180d
+12.6%
1y
+38.5%
2y
+115.8%
5y
+99.1%

Quick price facts

Blastoise GX #SM189 from Promo has a current raw market value of $18.00.

Current raw value
$18.00
PSA 9 value
$48.09
PSA 10 value
$427
Raw value 7d
+2.9%
Raw value 30d
+2.1%
PSA 10 premium vs raw
23.7× raw
View all cards from Promo →
Collector Intel
23.7x
Raw → PSA 10
High-risk grade
2.7x
Raw → PSA 9
Grade multiplier
+2.1%
30d Price Move
Rising
Steady
Price Stability
2.9% swing this week

Calculated from price history, PSA population data, and market trends. Not financial advice.

Grading Calculator

Based on PSA Standard tier (~$25 USD). Assumes a perfect PSA 10 result — actual outcome depends on card condition.

⚠️ High-variance grade. PSA 10 is 24x the raw price. The expected value accounts for the realistic probability.
$18
Buy Raw
~$25
Grading Fee
PSA Standard
$427
PSA 10 Value
+$384
Best Case (PSA 10)
if you pull a 10
Grade Multiples vs Raw
PSA 9$482.7x raw
PSA 10$42723.7x raw

Frequently asked questions

How much is Blastoise GX #SM189 from Promo worth?+
Blastoise GX #SM189 from Promo is currently worth Raw: $18.00, PSA 9: $48.09, PSA 10: $427 based on recent sold listings. Prices update daily from real eBay sales.
Is Blastoise GX #SM189 worth grading?+
The PSA 10 price of $427 is 23.7× the raw price of $18.00. After a ~$25 grading fee, a PSA 10 result would net approximately $409 — assuming the card grades a 10.
Where do PokePrices Blastoise GX #SM189 prices come from?+
Prices are tracked nightly from real sold listings on PriceCharting (raw, PSA 9 and PSA 10). PSA population data is sourced from PSA's public reports. We do not use asking prices — only confirmed sales.

Recent verified sales

Find this card on eBay →Affiliate · we may earn commission
  • 10 Sep 2026Raw
    tcgplayercompleted-auctions-usednear mint
    $18.55
  • 8 Sep 2026PSA PSA 10
    ebaycompleted-auctions-manual-onlyunknown
    $499.99
  • 6 Sep 2026Raw
    ebaycompleted-auctions-usednear mint
    $16.00
  • 5 Sep 2026Raw
    ebaycompleted-auctions-usedunknown
    $16.25
  • 4 Sep 2026Raw
    ebaycompleted-auctions-usednear mint
    $19.99