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About the artwork
Blastoise GX, a large blue turtle-like Pokémon, stands prominently with its water cannons extended. It has a determined expression, with its mouth open slightly to reveal teeth. The background is a solid, bright blue, suggesting an aquatic or open-sky environment without specific details.
Generated by AI vision — may contain mistakes.
Blastoise-GX
Sun & Moon Black Star Promos · #SM189
$22.38latest TCGplayer median
Buy or sell
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Price history (TCGplayer median, ~180 days)
PSA population (pop report, as of 2026-08-02)
Total graded
2,167
PSA 10s
569
PSA 9s
1,069
Gem rate
26.3%
Gem rate = share of all graded copies earning PSA 10. Sun & Moon Black Star Promos gem rates → · all sets →
About Blastoise-GX #SM189's market value
Blastoise-GX #SM189 (Holofoil, Promo) from Sun & Moon Black Star Promos (2017) has a market price of $22.38 raw as of September 20, 2026, the TCGplayer market price for this exact printing. For context, the median Sun & Moon Black Star Promos card is $9.76; this one ranks #66 of 253 priced printings. Over the last 30 days the price has edged up (+2.3%), +3.2% in the last week, +1.2% over 90 days, −4.0% over 180 days. Its 180-day range is $21.10 to $23.54.
Graded copies of Blastoise-GX sell for more than raw. A PSA 10 has a recent sale median of $359.95, about 17× the raw price (27 recent sales). PSA 9 copies go for around $40.00, about 1.9× the raw price (37 recent sales). Other grades we track: TAG 10 at $292.50, ACE 10 at $140.72, CGC 10 at $137.50. Graded medians come from recent eBay sold listings and refresh daily.
Related cards
Other Blastoise-GX cards by value
Similar value in Sun & Moon Black Star Promos
- Wash Rotom #SM94$22.71
- Alolan Marowak-GX #SM187$23.02
- Pikachu #SM227$23.28
- Mimikyu #SM29$21.38
- Pikachu #SM234$23.73