—Base99/1021999PSA 10

Grass Energy 99/102 · Base PSA 10 price

PSA 10 · gem mint slab

$90

Fair buy $90 · sell $1306.8× rawUpdated today

Grade vs rawFull ladder →

Raw NM$13
PSA 9$493.7×
PSA 10this page$906.8×

PSA 10 sales: 8; 6 cert-verified
Last 90 days: 6; occasional
Confidence: Medium; 6 sales in 90 days — enough for a guide, not a guarantee.
Latest sale: 7d ago; one every ~101d

ViewingPSA 10Raw / ungraded →PSA 9 →1st Edition PSA 10 $257 →

Our published graded price for this card, checked against every cert-verified sale below. An estimate, not an appraisal. How we price →

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PSA 10 slabs for sale right now

Live asks for a PSA 10 of this exact card · stock as of today. A raw copy or a reverse holo is a different product and is not in this list.

No live listings in our latest snapshot for this grade — the marketplaces above search it directly.

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Why $90? Cert-verified PSA 10 sales

Each sale is tied by PSA to a specific graded slab — click the cert to check the exact card, grade and serial on psacard.com. Outliers against the grade’s own median are dropped; qualified slabs are listed separately beneath.

Date	Sold via	Cert	Price
2026-08-13	eBay · fixedprice	listing #133817328	$90
2026-05-04	Fanatics · auction	#48042369 sold before	$46
2026-04-23	eBay · bestoffer	listing #95869399	$179
2025-10-10	eBay · auction	listing #48042369 sold before	$41
2025-09-08	Fanatics · auction	#48042369 sold before	$32
2025-05-20	eBay · fixedprice	listing #87852549	$48

3 of 6 were competitive auctions; 1 best offers and 2 fixed-price. A PSA 10 copy trades roughly every 101 days, the median gap between cert-verified sales.

PSA 10 price history

Monthly medians of cert-verified PSA 10 sales — 9 sales across 9 months, Mar 2022 to Aug 2026.

PSA 10 · index · latest

$90▲ 50%over 366 days

2025-10-03 → 2026-10-04

The recorded PSA 10 price index, closing on the figure above. Hover any day for its price on the line.

Latest $90 (Aug 2026, 1 sale) · ▲ 329% since Mar 2022

Slab history — PSA 10 copies that have sold more than once

1 slab has sold more than once, across 1 resale. That is 1 of the 7 distinct slabs behind 9 cert-linked sales at this grade — 14.3%. The rest we have seen sell once, which is not evidence they have not sold before.

Cert	Sales of this slab	Between	Gross change
#48042369	Sept 2025 $32→May 2026 $46	6–12 months	+40.7%

A cert reappearing shows the same physical slab sold again — it identifies no buyer or seller. Gross change is price to price; fees, shipping and the grading cost are not in it.

Every PSA 10 sale we can show you

Cert-verified sales, the eBay comps, our own ledger and Fanatics, in one list newest first. We hold 8 PSA 10 sales with a median of $102; the ledger names its most recent eight, which is what this table can link to. Fanatics alone: 2 PSA 10 sales, 1 in the last 90 days.

GraderGradeCert-verified only 6

	Grade	Venue	Date	Certificate	Price
1999 Pokemon Base Set Grass Energy #99 PSA 10 GEM MINT	PSA 10	FanaticsAuction	2026-09-28	—	$79.20
1999 Pokemon Base Set Grass Energy #99 PSA 10 GEM MINT	PSA 10	Fanatics	2026-09-28	—	$66.00
1999 Pokemon Base Set Unlimited #99 Grass Energy Gem Mt PSA 10	PSA 10	eBay	2026-09-19	—	$125
PSA 10 GEM MINT Pokemon Grass Energy Base Set 99/102	PSA 10	eBay	2026-09-11	—	$130
Pokémon WOTC Grass Energy Base Set Unlimited PSA 10 GEM MINT	PSA 10	eBay	2026-08-17	—	$85.00
1999 Pokémon Base Grass Energy 99/102 · PSA 10	PSA 10	eBayFixedPrice	2026-08-13	133817328	$89.92
1999 POKEMON GAME GRASS ENERGY #99 PSA 10 GEM MINT BASE SET	PSA 10	eBay	2026-08-12	—	$120
1999 POKEMON BASE SET UNLIMITED #99 GRASS ENERGY PSA 10	PSA 10	eBay	2026-07-17	—	$121
1999 Pokémon Base Grass Energy 99/102 · PSA 10	PSA 10	Fanatics CollectAuction	2026-05-04	48042369	$45.60
1999 Pokémon Base Grass Energy 99/102 · PSA 10	PSA 10	eBayBestOffer	2026-04-23	95869399	$179
1999 Pokemon Unlimited #99/102 Grass Energy PSA 10	PSA 10	Fanatics	2026-04-06	—	$80.00
1999 Pokémon Base Grass Energy 99/102 · PSA 10	PSA 10	eBayAuction	2025-10-10	48042369	$41.00
1999 Pokémon Base Grass Energy 99/102 · PSA 10	PSA 10	Fanatics CollectAuction	2025-09-08	48042369	$32.40
1999 Pokémon Base Grass Energy 99/102 · PSA 10	PSA 10	eBayFixedPrice	2025-05-20	87852549	$47.89

1–8 of 14 sales · 6 carry a PSA certificate, checkable on psacard.com.

How many PSA 10 copies exist

PSA’s cumulative census for this card. It counts resubmissions, so it skews toward nicer copies and overstates the rate a fresh submission should expect.

PSA 10 population

381

29.6% of 1,288 graded

Share of every submission

29.6%

the census gem rate — a ceiling

Total PSA graded

1,288

every grade, all time

Other graders at a 10: CGC 21 of 27 · TAG 13 of 28. A CGC or BGS 10 is its own market and is not in the price above.

Is Grass Energy worth grading?

Every grade weighted by how often this card actually earns it — the PSA 10 outcome is one leg, not the whole answer.

Verdict

Not worth it

every grade weighted by its census share

Expected net

$-43

after fees, all grades

Comes back PSA 10

2990%

of submissions, by the census

Best case

$-4

PSA 10 net of raw and fee

Grading cost

$80

tier fee + shipping

Trader

Compare graders, and the live market

The verdict above is PSA's — the grader the population, the ROI table and the ladder on this page all use. Trader prices all three graders against each other and adds what the asking market is doing right now.

Trader plan and above →

PSA, CGC and Beckett side by side — each on its own population and fees, Beckett scored on the 9.5 its market 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.

Built on 37 graded sales and a population of 1,891,093 · fees as of 2026-10-03.

More Grass Energy and more from Base

Prices are raw near mint; PSA 10 shown where we have one.

Cite this PSA 10 pricefree with attribution

Citation

Grass Energy (Base #99) — PSA 10 market value USD $90, from 6 cert-verified sales. Source: CardTrack, https://cardtrack.com/pokemon/card/base/grass-energy-99/psa-10

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Frequently asked questions

How much is a PSA 10 Grass Energy (Base #99) worth?

As of 4 October 2026, a PSA 10 gem mint Grass Energy from Base is worth approximately $90, with a fair range of $90 to $130 — about 6.8× the $13 raw near-mint price.

Where does the PSA 10 price come from?

From 6 cert-verified PSA 10 sales, each tied by PSA to a specific slab with a public cert number — 3 at auction, 1 by best offer and 2 at a fixed price. A PSA 10 copy trades roughly every 101 days.

How many PSA 10 Grass Energy exist?

PSA has graded 381 copies of Grass Energy (Base #99) a 10, out of 1,288 submitted — 29.6% of the population. The census counts resubmissions, so it overstates the gem rate a fresh submission should expect.

Should I grade my Grass Energy hoping for a PSA 10?

Probably not. Weighting every grade by how often this card earns it, expected value after the $80 grading fee is about $-43; this card comes back a PSA 10 about 2990% of the time.

Is a PSA 10 Grass Energy a good investment?

CardTrack tracks prices; it does not give investment advice. A PSA 10 Grass Energy has 8 recorded sales, 6 of them in the last 90 days, and the slab-history table above shows what happened to copies that sold twice. Read those before you read anyone's forecast.