What is the Slabline Score?

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.

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.

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 Umbreon 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 →

2021 Pokemon Japanese Promo Card Pack 25th Anniversary Edition Umbreon #12

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.

Representative photo · another grade or parallel of this card

Own this slab? Lend its photo — add it to your collection and it appears here, credited anonymously →

2021 Pokemon Japanese Promo Card Pack 25th Anniversary Edition checklist→Pokémon market index-1.0% 1W

Estimated value · PSA 10

$353

See live listings on eBay →

Tracked history · PSA 10

Price checked today · last recorded sale 29 days ago at eBay (PSA 10) · 6 sales in the last 90 days

Own this card? Add it to see its per-cert comps.

Your exact cert unlocks cert-specific recent sales, comp confidence, and full population across PSA · BGS · SGC · CGC — plus a value tracked daily. Free, no account.

Add to my collection →

You own a $353 card. A standard homeowners policy typically pays a few hundred dollars for stolen collectibles — and nothing at all for flood.

See what you'd actually get back →

Prefilled with $353 · 20 seconds · no account

✦ Own this card?

Track it free — worth about $353 today

My copy is

Value re-priced dailySell / hold / regrade callInsurance-ready recordNo account needed

Add to my collection →

Trading this card? Check the trade → · Ripping slab packs? See the real EV → · both sides priced per cert, liquidity-adjusted, free.

🔔 Want to know when this card moves?

We'll email you when the value changes. No account needed.

One email when it moves ~5%+. Unsubscribe anytime.

Value by grade

How much the 2021 Pokemon Japanese Promo Card Pack 25th Anniversary Edition Umbreon #12 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	$353est.	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.

Loading every grader…

Recorded sales · all grades

Highest Pokémon sales →

Marketplaces (200)

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 · 200 sales · 2024–2026

▲ 187.6% first → latest

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

Aug 30, 2026 · eBay · PSA 10$353
Aug 28, 2026 · eBay · PSA 10$370
Aug 6, 2026 · Alt · PSA 10$298
Jul 30, 2026 · Alt · PSA 10$364
Jul 24, 2026 · Alt · PSA 10$328
Jul 10, 2026 · Alt · PSA 10$275
Apr 26, 2026 · eBay · PSA 10$339
Mar 30, 2026 · Marketplace · house pending · PSA 10$260
Mar 10, 2026 · eBay · PSA 10$320
Jan 12, 2026 · eBay · PSA 10$299

Ask Slabline

answers only from this card's data

Anything about Umbreon?

Own this card? List it on ebay straight from your Slabline collection — prefilled title, photo and price, one tap.→

✦ Have the raw card? Pre-Grade it from a photoFree AI

Predict the grade it would likely receive — then see its real gem rate and whether it's worth grading, before you pay to submit.

→

Centering analyzer →

Own this card? Track its value automatically.

Add it to your free Slabline collection — live valuations, a 0–1000 protection score, and a broker-ready insurance schedule.

Start my collection →

See a full Pokémon collection scored →

Or get the iOS app

See live listings on eBay →

Slabline may earn a commission from eBay purchases.

Frequently asked

How much is a PSA 10 2021 Pokemon Japanese Promo Card Pack 25th Anniversary Edition Umbreon #12 worth?: A PSA 10 2021 Pokemon Japanese Promo Card Pack 25th Anniversary Edition Umbreon #12 is worth approximately $353, the price-guide estimate for this grade. Card values fluctuate with the market.
How does Slabline value the Umbreon 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.

Related cards

Guides

Own this card? Track its value automatically.

Add it to your free Slabline collection — live valuations, a 0–1000 protection score, and a broker-ready insurance schedule.

Start my collection →

See a full Pokémon collection scored →

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.