Grumpig #20, Normal, EX Crystal Guardians
- Card number: #20/100
- Rarity: Rare
- Finish: Non-Holo
A PSA 8 Grumpig #20 Normal from EX Crystal Guardians has a TCGBerg fair value of $26 as of Nov 14, 2026. It rests on 2 recorded sales, the latest on Sep 9, 2026. PSA has graded 1 copy at PSA 8. Sales evidence is sparse, so treat this value as a rough estimate.
TCGBerg Algorithm (estimated from recorded sales).
2 sales · latest Sep 9, 2026
- Population · PSA 8
- 1
- Market cap
- $26
- Volatility
- 0.9%
- YTD
- ↑ 81.8%
- Sales evidence
- Sparse
TCGBerg fair value · PSA 8
$26
Based on 2 recorded sales. Latest sale: Sep 9, 2026.
Price history
Weekly fair value for PSA 8. Shaded area is the confidence band: how precisely we can pin the value; it tightens as more sales confirm it. Dots are individual sales.
What the evidence says
The last PSA 8 sale, $25 on Sep 9, 2026, is in line with the $26 fair value (4.0% below). The value rests on 2 recorded PSA 8 sales. Its confidence band runs from $21 to $31. A PSA 10 ($333) is worth 5.5 times a PSA 9 ($61). Over the past 30 days the PSA 8 value has risen 2.0%. With sparse sales evidence, read the gap and the band as rough guides.
TCGBerg fair value by grade
Value at each grade and ungraded condition. Log scale. Tap a row to switch the whole page.
- Raw NM$0.92Ungraded · TCGBerg fair value
- Raw LP$0.82Ungraded · TCGBerg fair value
- Raw MP$0.59Ungraded · TCGBerg fair value
- Raw HP$0.40Ungraded · TCGBerg fair value
- Raw Damaged$0.33Ungraded · TCGBerg fair value
Behind the scenes
What goes into this price, and how much we know.
Recent sales
7 trackedEach sale against the grade's fair value on the day it sold.
- $60Oct 4, 2026 · via eBayabove fair value by 7.6%
- $25Sep 9, 2026 · via Fanatics Collectabove fair value by 8.2%
- $0.86Aug 26, 2026 · via tcgplayerRawbelow fair value by 6.5%
- $0.90Aug 25, 2026 · via tcgplayerRawbelow fair value by 2.2%
- $1.02Aug 10, 2026 · via tcgplayerRawabove fair value by 10.9%
2 more sales with Pro
Up to 20 recent sales, each with its venue and its gap to fair value.
Includes a sale 5.3% below fair value
All grades matrix
Every grade we track for this printing. Click any column header to sort; the rightmost column jumps you to listings for that grade.
- $3331d 0.0%7d 0.0%30d 3.9%
- Pop
- 5
- Mcap
- $1.7K
- Evidence
- Sparse
- Last
- -
- $611d 0.0%7d 0.0%30d 9.0%
- Pop
- 14
- Mcap
- $848
- Evidence
- Sparse
- Last
- $60
- $261d 0.0%7d 0.0%30d 2.0%
- Pop
- 1
- Mcap
- $26
- Evidence
- Sparse
- Last
- $25
| Listings | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| $333 | 5 | $1.7K | 0.0% | 0.0% | up 3.9% | up 104.2% | Sparse | - | ||
| $61 | 14 | $848 | 0.0% | 0.0% | up 9.0% | up 117.5% | Sparse | $601mo ago | ||
| $26 | 1 | $26 | 0.0% | 0.0% | up 2.0% | up 68.4% | Sparse | $252mo ago | ||
| $15 | 0 | - | up 0.1% | up 5.0% | up 13.3% | up 62.1% | Sparse | - | ||
| $14 | 1 | $14 | 0.0% | 0.0% | up 1.8% | up 45.6% | Sparse | - | ||
| Raw | $0.92 | - | - | - | 0.0% | 0.0% | - | Strong | $0.863mo ago |
PSA population report
21 graded copies of Grumpig Normal across 4 grades. The selected grade is highlighted.
PSA 8 makes up 4.8% of graded copies: 1 of 21. It’s the scarcest grade tracked: a strong scarcity signal.
Analysis
Grumpig - Normal at PSA 10 carries a TCGBerg fair value of $333 as of 2026-11-13. We track a TCGBerg fair value across 5 grades from EX Crystal Guardians, from PSA 6 up to PSA 10. A graded population of 5 copies sits behind the PSA 10 grade. The PSA 10 valuation rests on sparse sales evidence. Over the past 30 days, the PSA 10 TCGBerg fair value has risen 3.9%.