Blastoise-GXPR-SM SM189 · SM Black Star Promos Price & Value
Market value · Near Mint
Pack fresh $26est.
- PSA 8$303 sold · 90d · pop 315
- PSA 9$405 sold · 90d · pop 1,057
- PSA 10$3805 sold · 90d · pop 545
Make sure you have the right card
Every price on this page is for SM Black Star Promos #PR-SM SM189, 2017. Check yours against the tells below before you buy, sell or grade.
The picture itself is foiled and the card body is flat. This is the standard holo.
What's your copy worth?
Estimated. This card has enough sales to price the top 15% but not the top 5%, so pack-fresh is projected from the gap we measure between those two tiers on cards that do — about 1.4x on vintage, 1.2x on modern. $30.04. That's about +67% over a typical Near Mint copy.
ⓘ How do we work this out?
We take every real sale of this exact card over the last 12 months (26 sales), sort them by price, and read off the top 15% and top 5%. No multipliers, no guesses — the prices cleaner copies actually fetched.
Why cleaner copies cost more: buyers can see condition in the photos and pay for it. Listings sellers describe as pack fresh or gem mint land in this top band 1.7× more often than ordinary ones — the premium follows the card, not the hype.
Copies in this band are also the ones collectors send to grading: far more likely than a typical binder copy to be submitted at all — and to come back with the strong grade that carries the PSA prices shown on this page. That prospect is part of what buyers are paying for here.
These are read straight off this card's own completed sales — sort them by price and take the top 15% and top 5%. Whether your copy qualifies is a judgment made by looking at the card.
✨ Is it worth it?
An AI market read of this card — value, momentum, grading economics, liquidity. It lays out the data; you decide.
Blastoise-GX is a Promo Pokémon card from SM Black Star Promos (#SM189, released 2017), illustrated by sadaji. It's a Stage 2 GX Water-type Pokémon with 240 HP, evolving from Wartortle, weak to Grass ×2. Prices below are aggregated across marketplaces — raw and graded, updated daily and shown in your local currency.
Prices last updated 7 September 2026.
Blastoise-GX price history & recent sales
Graded a PSA 10? See its cert-verified sales and price history → — individual sales PSA tied to a specific slab, each with a cert number you can check.
Price history · Raw
We'll email you when this card's value crosses your target.
Verified sales history
High confidence26 sales in 90 days, closely clustered. · Very liquid — Sells often
7 of 10 verified sales were competitive auctions — this price reflects real bidding, not asking prices. A graded copy trades roughly every day (median gap between cert-verified sales).
By grade
- Raw$15.0044 sales · 26 in 90d, sells often
- PSA 10$3799 sales · 5 in 90d, occasional
- PSA 9$40.136 sales · 5 in 90d, occasional
- PSA 8$29.996 sales · 3 in 90d, occasional
- TAG 10$2932 sales · 1 in 90d, rare
- PSA 7$31.822 sales
- CGC 9$49.992 sales
- CGC 8.5$24.002 sales · 2 in 90d, rare
Is Blastoise-GX worth grading?
Raw $17.94 → graded PSA 10 ≈ $380.00, after ~$73.79 grading fee → 21.2× the raw value.
Compare graders, and the live market
The verdict above is PSA's — the grader the population report, the ROI table and the price ladder on this page all use. Trader prices all three graders against each other and adds what the asking market is doing right now.
- PSA, CGC and Beckett side by side — each on its own population and its own fees, with Beckett scored on the 9.5 its market actually pays for.
- Lightly and moderately played — the same expected return for a copy that cannot gem.
- Ask vs sold — what the live listings want, against what copies have really closed at.
- Momentum — the 30-day median against the 90-day, per grade.
- Where it sells higher — the Fanatics-versus-eBay premium, with the sale counts behind it.
- Population history — the weekly PSA census, so you can see how fast 10s are arriving before you post the card.
The odds
Blastoise-GX is a Commoncard — a guaranteed slot in every pack, not a rarity gamble, so there's no pull-odds figure for it.
Estimates only. Pack odds come from CardTrack's pack model (the same one behind the pack simulator) — not an official rate. Grading odds are the real cumulative PSA population, which skews toward nicer, resubmitted copies, so it overstates the true first-submission gem rate. Full grade-by-grade breakdown below.
Grade-by-grade ROI & risk-adjusted outcomesNet vs raw per target grade, plus the probability-weighted distribution
| Target grade | Est. value | Grading fee | Net vs raw | Multiple |
|---|---|---|---|---|
| PSA 10 | $380.00 | $74 | +$288 | 21.2× |
| PSA 9 | $40.00 | $70 | −$48 | 2.2× |
| PSA 8 | $30.00 | $70 | −$58 | 1.7× |
Net = graded value − raw value − grading cost (tier fee + ~$20 round-trip shipping), using PSA fees as of 2026-08-26; the paused PSA Value tier is excluded so this isn't overstated. Real outcome depends on the grade achieved; PSA 10 is best-case.
Population across gradersPSA, CGC, BGS & TAG — every grade, with gem rates
545 of the 2,112 PSA-graded Blastoise-GX copies came back a gem-mint 10 — 26%. The rest graded lower.
Bar length is relative to this grader's most common grade; the figure on the right is the share of all 2,112.
Bar length is relative to this grader's most common grade; the figure on the right is the share of all 32.
Real graded population from PSA, CGC, BGS & TAG — a lower gem rate means a Blastoise-GX 10 is harder to pull.
Copies for sale right now
Pokemon TCG Blastoise GX Black Star Sun & Moon Jumbo Promo SM189 Oversized JumboRaw · eBay$6.39
Blastoise GX - (Black Star Promos) SM189 Jumbo Cards HoloRaw · eBay$8.00
Pokemon TCG Blastoise GX Black Star Sun & Moon Jumbo Promo SM189 Oversized JumboRaw · eBay$9.99
Blastoise GX - (Black Star Promos) SM189 Jumbo CardRaw · eBay$9.99
The Pokémon Company Blastoise GX SM189 Promo Jumbo Holo Black Star Promos 240HPRaw · eBay$10.10
The Pokémon Company Blastoise GX SM189 Black Star Promo Holo Jumbo HP-DMGRaw · eBay$11.69Cheapest raw copy $6.39 — 64% below our near-mint estimate of $18
Buying this card on eBay? The free CardTrack extension shows our value and a deal verdict right on the listing. Add to Chrome →
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All grades & conditions
Every grade we pricePSA / CGC / BGS ladder with per-grade population
| Grade | Relative value | Price |
|---|---|---|
| PSA 10pop 545 | ✓ 33 cert-verified$380$293–$397 | |
| PSA 9pop 1,057 | $40$34–$46 | |
| PSA 8pop 315 | $30$26–$35 | |
| PSA 7pop 95 | ✓ 6 cert-verified$25$17–$25 |
Raw condition ladderNM → damaged, with real sold medians where we have them
A typical Near Mint copy sells for $15.80. Grading-candidate copies — the cleanest 15% of sales — typically fetch $19.60 (+24%). Pack-fresh examples — the top 5% — go for about $26.46.
From 11 sales in the last 12 months. These describe the market — whether a specific copy is a grading candidate is a judgment made by looking at it.
For context: a graded PSA 7 slab of this card sells for about $32 (cert-verified) — a heavily-played raw copy shouldn't cost much more than that.
Market dataCross-market spread, EU price, momentum & community buzz
Cross-market prices
22% spreadCurrently 22% cheaper on PriceCharting than TCGplayer. These are independent market prices for the same card — a wide gap can mean a buying opportunity. Informational only, not arbitrage advice.
Market signal
Derived from this card's 90-day price history, recent trend and cross-market price gap. Informational, not advice.
Card textAttacks, abilities, weakness / resistance / retreat
Evolves from Wartortle.
This Pokémon takes 30 less damage from attacks (after applying Weakness and Resistance).
Shuffle any amount of Water Energy from your Pokémon into your deck. This attack does 60 damage for each card you shuffled into your deck in this way.
Attach any number of Water Energy cards from your hand to your Pokémon in any way you like. (You can't use more than 1 GX attack in a game.)
Pokémon-GX rule: When your Pokémon-GX is Knocked Out, your opponent takes 2 Prize cards.
Card detailsSet, rarity, artist, Pokédex & specs
Other Blastoise-GX cards
There are 3 different Blastoise-GX printings — make sure you're valuing the right one. This is SM Black Star Promos #SM189 (Promo).
More from SM Black Star Promos
Frequently asked questions
How much is Blastoise-GX (SM Black Star Promos #SM189) worth?
As of 7 September 2026, Blastoise-GX from SM Black Star Promos is worth approximately $17.94 ungraded (near-mint), and around $380 in PSA 10 gem mint. Values are blended from real Cardmarket, eBay sold and TCGplayer prices and update daily.
What is the PSA 10 price for Blastoise-GX?
A PSA 10 (gem mint) Blastoise-GX from SM Black Star Promos is worth around $380 — roughly 21× the raw ungraded value of $17.94.
Should I grade my Blastoise-GX?
Grading is worth it when the PSA 10 premium comfortably beats the grading fee and the card is clean enough to have a real shot at a 10 — the "Should you grade it?" estimate above works that out per grade, net of the current fee.
Is Blastoise-GX rare?
Blastoise-GX is a Promo card from SM Black Star Promos (card #SM189).
How do I know if my Blastoise-GX is Holofoil?
The illustration window: The picture itself is foiled and the card body is flat. This is the standard holo.
Cite & embed this card
Free to use with attribution to CardTrack.
Blastoise-GX (SM Black Star Promos #SM189) — Pokémon market value $17.94, PSA 10 $380.00. Source: CardTrack, https://cardtrack.com/pokemon/card/sm-black-star-promos/blastoise-gx-sm189<iframe src="https://cardtrack.com/embed/card?id=smp-SM189" width="100%" height="160" style="border:0;max-width:460px" title="Blastoise-GX price — CardTrack" loading="lazy"></iframe>
<p style="font:12px system-ui">Source: <a href="https://cardtrack.com">CardTrack</a></p>