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The Slabline Score is a credit-style 0–1000 protection score for a graded trading-card collection, blended from five weighted factors: Insurance (35%), Concentration (25%), Storage (20%), Liquidity (10%), and Provenance (10%). Higher is better; bands run A (≥880) to F (<400).

How does Slabline value my graded cards?

Each card is valued from recent comparable sales for the exact graded card (by certification number and grade), aggregated across eBay, Heritage, Goldin, and PWCC. More comps yield a tighter, higher-confidence value.

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No. Slabline is software that produces broker-ready insurance schedules and risk reports. It is not an insurer, broker, or appraiser and does not provide insurance, financial, or legal advice.

Which cards and categories does Slabline support?

Graded slabs from PSA, BGS, SGC, and CGC across baseball, basketball, football, soccer, Formula 1 / racing, hockey, Pokémon, and Magic.

How much does Slabline cost?

There is a free Ledger tier for up to 25 cards. Collector is $99/year (or $9.99/month) and removes the card limit for an unlimited collection. Insured is $149/year (or $14.99/month) and adds broker-ready insurance schedules and a weekly intelligence brief. A Vaulted tier adds connected Hobby Smart Case hardware.

What is the Hobby Smart Case?

A connected travel case (Travel 40, 75, and Pro) with per-slot temperature, humidity, light, and tamper monitoring, plus GPS location and a chain-of-custody log — turning storage risk into live, sensor-verified data. Launching Q2 2027.

How does Slabline value the Gyarados [Master Ball] card?

Slabline starts from the price guides for the card and grade. When it holds dated recorded sales of that exact card and grade — from CardHedge market data and the auction houses it ingests — the headline becomes the median of the most recent ones and the grade ladder rescales to match. Each row on the page names which of those it is.

Slabline^™All graded cards →

2023 Pokemon Japanese Scarlet & Violet 151 Gyarados [Master Ball] #130

Q: How does Slabline value my graded cards?

Each card is valued from recent comparable sales for the exact graded card (by certification number and grade), aggregated across eBay, Heritage, Goldin, and PWCC. More comps yield a tighter, higher-confidence value.

Q: Does Slabline sell insurance?

No. Slabline is software that produces broker-ready insurance schedules and risk reports. It is not an insurer, broker, or appraiser and does not provide insurance, financial, or legal advice.

Q: Which cards and categories does Slabline support?

Graded slabs from PSA, BGS, SGC, and CGC across baseball, basketball, football, soccer, Formula 1 / racing, hockey, Pokémon, and Magic.

Q: How much does Slabline cost?

There is a free Ledger tier for up to 25 cards. Collector is $99/year (or $9.99/month) and removes the card limit for an unlimited collection. Insured is $149/year (or $14.99/month) and adds broker-ready insurance schedules and a weekly intelligence brief. A Vaulted tier adds connected Hobby Smart Case hardware.

Q: What is the Hobby Smart Case?

A connected travel case (Travel 40, 75, and Pro) with per-slot temperature, humidity, light, and tamper monitoring, plus GPS location and a chain-of-custody log — turning storage risk into live, sensor-verified data. Launching Q2 2027.

What a PSA 10 is worth — price-guide estimate, with every recorded sale we hold.

2023 Pokemon Japanese Scarlet & Violet 151 checklist→Pokémon market index-0.3% 1W

Estimated value · PSA 10

$148

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Tracked history · PSA 10

Price checked today · last recorded sale 7 days ago (PSA 10) · 7 sales in the last 90 days

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Value by grade

How much the 2023 Pokemon Japanese Scarlet & Violet 151 Gyarados [Master Ball] #130 is worth at each grade.

How to read this page: an estimate is Slabline's figure for a grade, built from the source named beside it. An observed price is the latest price a grader's copy of this card fetched, one cell per grader and grade in the grid below. A recorded sale is a dated transaction with its venue. The headline above is the estimate for this slab's own grade.

Grade	Value	Built from
Gem Mint 10	$148est.	estimate

Estimated from this category's observed grade curve and this card's known value — no per-grade sales recorded yet. Estimates, not observed prices.

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Recorded sales · all grades

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Marketplaces (145)

eBay, Fanatics Collect, Alt, MySlabs, Goldin and Heritage records arrive through CardHedge's licensed feed; REA, SCP and Huggins & Scott are read from each house's published prices realized.

Sales seen on eBay, Fanatics Collect, Goldin, Heritage, Alt and MySlabs, via CardHedge. "Marketplace · house pending" is a real CardHedge sale whose house is not matched yet.

All venues · 145 sales · 2023–2026

▼ 47.2% first → latest

Hover for any sale · click to find it in the list

Sep 20, 2026 · Marketplace · house pending · PSA 10$87
Sep 10, 2026 · Marketplace · house pending · PSA 10$120
Aug 17, 2026 · Marketplace · house pending · PSA 10$145
Jul 29, 2026 · Marketplace · house pending · PSA 10$149
Jul 17, 2026 · Marketplace · house pending · PSA 10$128
Jul 13, 2026 · Marketplace · house pending · PSA 10$146
Jul 1, 2026 · Marketplace · house pending · PSA 10$195
Jun 22, 2026 · Marketplace · house pending · PSA 10$195
Jun 19, 2026 · Marketplace · house pending · PSA 10$156
Jun 17, 2026 · Marketplace · house pending · PSA 10$250

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Frequently asked

How much is a PSA 10 2023 Pokemon Japanese Scarlet & Violet 151 Gyarados [Master Ball] #130 worth?: A PSA 10 2023 Pokemon Japanese Scarlet & Violet 151 Gyarados [Master Ball] #130 is worth approximately $148, the price-guide estimate for this grade. Card values fluctuate with the market.
How does Slabline value the Gyarados [Master Ball] card?: Slabline starts from the price guides for the card and grade. When it holds dated recorded sales of that exact card and grade — from CardHedge market data and the auction houses it ingests — the headline becomes the median of the most recent ones and the grade ladder rescales to match. Each row on the page names which of those it is.

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Values are informational estimates built from recent comparable sales — not a certified appraisal, insurance, or financial advice. Card values fluctuate; figures are a snapshot and may differ from a realized sale.