Kingdra-GXPR-SM SM155 · SM Black Star Promos Price & Value
Market value · Near Mint
- PSA 8$13modelled · pop 61
- PSA 9$352 sold · 90d · pop 262
- PSA 10$1553 sold · 90d · pop 374
Make sure you have the right card
Every price on this page is for SM Black Star Promos #PR-SM SM155, 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?
✨ Is it worth it?
An AI market read of this card — value, momentum, grading economics, liquidity. It lays out the data; you decide.
Kingdra-GX is a Promo Pokémon card from SM Black Star Promos (#SM155, released 2017), illustrated by 5ban Graphics. It's a Stage 2 GX Water-type Pokémon with 230 HP, evolving from Seadra, weak to Grass ×2. It's listed among our GX cards, from the Sun & Moon (2017–2019) era. Prices below are aggregated across marketplaces — raw and graded, updated daily and shown in your local currency.
Prices last updated 9 September 2026.
Kingdra-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
Low confidenceOnly 2 sales in the last 90 days. · Moderate — Occasional sales
Sale mix: 3 auctions, 2 accepted offers, 5 fixed-price. A graded copy trades roughly every 6 days (median gap between cert-verified sales).
By grade
- PSA 10$1568 sales · 3 in 90d, occasional
- PSA 9$38.005 sales · 2 in 90d, rare
- Raw$27.082 sales · 2 in 90d, rare
- CGC 9$19.502 sales
- TAG 7$15.001 sale · 1 in 90d, rare
- CGC 6$13.201 sale
- CGC 10$55.001 sale
Is Kingdra-GX worth grading?
Most copies come back PSA 10 — worth $156 against the $88 you put in. The money is in the 1 in 1 that reach PSA 9 or 10 and sell for $35–$156. Averaged over every outcome that is +$8 a card.
That is the average submitted copy. Tell us about yours and the verdict re-prices — most cards stop being worth grading here. Not sure? Grade it from a photo →
These are set to a flawless copy — the answer above. Change any of them to re-price it for the card in your hand.
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
Kingdra-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 | $155.00 | $72 | +$66 | 9.0× |
| PSA 9 | $35.00 | $70 | −$53 | 2.0× |
| PSA 8 | $13.00 | $70 | −$74 | 0.8× |
⚖️ Risk-adjusted return
Best case isn't the whole story. Weighting every grade by how often it actually happens, across 691 PSA-graded copies:
| Outcome | Chance | Value |
|---|---|---|
| PSA 10 — typical | 52.8% | $155.50 |
| PSA 9 | 34.9% | $35.00 |
| PSA 8 | 8.2% | $13.00 |
| PSA 7 | 1.3% | $13.00 † |
| PSA 6 | 1.9% | $13.00 |
| PSA 5 | 0.4% | $13.00 |
| PSA 4 | 0.1% | $13.00 |
| PSA 2 | 0.1% | $13.00 |
| PSA 1 | 0.1% | $13.00 |
† Priced from PriceCharting's graded ladder — we hold no completed sale of our own at that grade. Every other row is our own sold data.
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. Gem rate is estimated from cumulative PSA population, which skews toward nicer, resubmitted copies — so it overstates the true grade rate. Treat it as a guide, not a guarantee.
Population across gradersPSA, CGC, BGS & TAG — every grade, with gem rates
374 of the 727 PSA-graded Kingdra-GX copies came back a gem-mint 10 — 51%. 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 727.
Bar length is relative to this grader's most common grade; the figure on the right is the share of all 6.
Real graded population from PSA, CGC, BGS & TAG — a lower gem rate means a Kingdra-GX 10 is harder to pull.
Copies for sale right now
The Pokémon Company Kingdra GX SM155 SM Promo Holo 230 HP EngRaw · eBay$6.99
Kingdra GX - SM155 - Full Art Ultra Rare - SM Black Star Promo DMG, English PokeRaw · eBay$8.72
Kingdra GX Pokemon Sun & Moon Black Star Promo #SM155 MPRaw · eBay$9.99
The Pokémon Company Kingdra GX SM155 GX Promo Holo Pokémon TCG Sun & Moon 2018Raw · eBay$10.00
Kingdra GX SM155 Sm HoloRaw · eBay$10.00
Kingdra GX SM155 Sm HoloRaw · eBay$11.00Cheapest raw copy $6.99 — 59% below our near-mint estimate of $17
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 374 | $155$132–$178 | |
| PSA 9pop 262 | $35$30–$40 | |
| PSA 8pop 61 | modelled$13$13–$13 |
Raw condition ladderNM → damaged, with real sold medians where we have them
Market dataCross-market spread, EU price, momentum & community buzz
Cross-market prices
15% spreadCurrently 15% 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 Seadra.
This attack does 50 more damage times the amount of Water Energy attached to this Pokémon.
Switch this Pokémon with 1 of your Benched Pokémon.
This attack does 40 damage to each of your opponent's Pokémon. (Don't apply Weakness and Resistance for Benched Pokémon.) (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 Kingdra-GX cards
There are 3 different Kingdra-GX printings — make sure you're valuing the right one. This is SM Black Star Promos #SM155 (Promo).
More from SM Black Star Promos
Frequently asked questions
How much is Kingdra-GX (SM Black Star Promos #SM155) worth?
As of 9 September 2026, Kingdra-GX from SM Black Star Promos is worth approximately $17.20 ungraded (near-mint), and around $155 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 Kingdra-GX?
A PSA 10 (gem mint) Kingdra-GX from SM Black Star Promos is worth around $155 — roughly 9× the raw ungraded value of $17.20.
Should I grade my Kingdra-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 Kingdra-GX rare?
Kingdra-GX is a Promo card from SM Black Star Promos (card #SM155).
How do I know if my Kingdra-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.
Kingdra-GX (SM Black Star Promos #SM155) — Pokémon market value $17.20, PSA 10 $155.00. Source: CardTrack, https://cardtrack.com/pokemon/card/sm-black-star-promos/kingdra-gx-sm155<iframe src="https://cardtrack.com/embed/card?id=smp-SM155" width="100%" height="160" style="border:0;max-width:460px" title="Kingdra-GX price — CardTrack" loading="lazy"></iframe>
<p style="font:12px system-ui">Source: <a href="https://cardtrack.com">CardTrack</a></p>