| ebay.co.uk | n=2 | $7.56 | +248% |
| ebay.de | n=2 | $3.66 | +68% |
| ebay.com | n=20 | $2.17 | — |
How is this value calculated?
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 4 | 3 mo | $5.08 | 32.65 |
| eigene LP-Verkäufe ÷ 0.8685 | 3 | 3 mo | $1.89 | 2.08 |
Measured error for this era×language (backtest): ±22 %
Gate not green — shown only here, never as the price.
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 0.6004 (Sprach-Faktor aus 6 Karten) | 4 | 3 mo | $3.05 | 1.64 |
Measured error for this era×language (backtest): ±20 %
Gate not green — shown only here, never as the price.
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.0288 (Sprach-Faktor aus 9 Karten) | 4 | 3 mo | $5.23 | 5.43 |
Measured error for this era×language (backtest): ±2 %
Gate not green — shown only here, never as the price.
No PSA numbers for this print yet — in any language.
| 2026-09-11 | DE | RAW NM | Pokémon Karte Groink Holo Rare 20/100 Deutsch 2006 · eBay | $1.13 |
| 2026-07-02 | EN | RAW UNKNOWN | Grumpig 20/100 Crystal Guardians Regular · eBay | $1.77 |
| 2026-07-01 | EN | RAW MP | Grumpig 20/100 Rare Crystal Guardians Pokemon Moderately Pla · eBay | $8.02 |
| 2026-06-26 | EN | RAW LP | Grumpig 20/100 EX Crystal Guardians Rare LP · eBay | $0.98 |
| 2026-06-25 | EN | RAW LP | Pokémon Grumpig EX Crystal Guardians 20/100 LP · eBay | $1.70 |
| 2026-06-24 | EN | RAW NM | Grumpig 20/100 Rare Crystal Guardians Pokemon NM/M · eBay | $2.49 |
| 2026-06-24 | EN | RAW UNKNOWN | Pokemon Grumpig #20/100 English Crystal Guardians 2006 Stamp · eBay | $15.72 |
| 2026-06-16 | EN | RAW UNKNOWN | GRUMPIG 20/100 CRYSTAL GUARDIANS Rare Pokemon | $1.84 |
| 2026-06-16 | EN | RAW LP | Grumpig Stamped | 20/100 Ex Crystal Guardians | Holofoil | L | $10.38 |
| 2026-06-07 | EN | RAW MP | 2006 Pokemon Crystal Guardians Stamped Holo Grumpig 20/100 R | $6.77 |
| 2026-06-02 | EN | RAW UNKNOWN | 2006 Miracle Crystal Unlimited Grumpig Stage 1/Rare #20 | $5.22 |
| 2026-05-18 | EN | RAW NM | Grumpig Stamped | 20/100 Ex Crystal Guardians | Holofoil | N | $11.37 |
| 2026-05-18 | EN | RAW UNKNOWN | Pokémon Grumpig 20/100 ENG Non Holo Rare EX Crystal Guardian | $6.19 |
| 2026-05-16 | EN | RAW MP | Pokemon Grumpig 20/100 EX Crystal Guardians Rare MP Vintage | $2.43 |
| 2026-05-10 | EN | RAW UNKNOWN | Grumpig 20/100 Rare EX Crystal Guardians Pokémon Card | $1.90 |
| 2026-05-07 | EN | RAW UNKNOWN | Grumpig 20/100 EX Crystal Guardians Rare Pokemon TCG | $0.96 |
| 2026-05-05 | EN | RAW UNKNOWN | Grumpig 20/100 Holo Ex Crystal Guardians Pokémon Card | $9.91 |
| 2026-05-04 | EN | RAW NM | Grumpig Rare Crystal Guardians 20/100 NM | $1.17 |
| 2026-05-04 | EN | RAW MP | Grumpig Rare Normal Crystal Guardians 20/100 MP | $2.40 |
| 2026-05-03 | EN | RAW UNKNOWN | Pokemon TCG Grumpig 20/100 EX Crystal Guardians Rare 2006 Ps | $2.07 |
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#56 · Frequently asked questions
Is it worth grading Grumpig Crystal Guardians 20/100?
A PSA 10 currently sells for about $865.74, raw the card sits at $4.79 — 180.8× as much. Mathematically, submitting returns $865.74 on average, before fees and shipping. Rule of thumb: submit when the value at a realistic grade is at least double the raw value — which is the case here. Centering decides it: an off-centre card will not get a 10.
What will I get for Grumpig Crystal Guardians 20/100 if I want to sell quickly?
Half of all sales fell between $1.84 and $6.77, with a median of $2.40. Selling fast lands you nearer the lower end; with patience, good photos and a complete title the upper end is achievable.
Below which price is an offer for Grumpig Crystal Guardians 20/100 unrealistic?
The cheapest genuine sales were around $1.13. Offers well below $0.68 are typically fakes, mislabelled cards or a different variant — ask for photos of all four borders and a close-up of the surface.
How does lastsold determine the market value?
lastsold uses only real sales — eBay plus auction houses like Goldin & Fanatics — recent sales count more (recency weighting), outliers and fakes are removed. It's not an estimate but actual sold prices, separated by condition, language and grading.