Dialga #XY77, Normal, XY Black Star Promos
- Card number: #XY77
- Rarity: Promo
- Finish: Non-Holo
A PSA 8 Dialga #XY77 Normal from XY Black Star Promos has a TCGBerg fair value of $356 as of Nov 15, 2026. TCGBerg has recorded 29 PSA 8 sales of this card, the latest on Nov 10, 2026. PSA has graded 426 copies at PSA 8.
TCGBerg Algorithm (estimated from recorded sales).
- Population · PSA 8
- 426
- Market cap
- $151.5K
- Volatility
- 11.3%
- YTD
- ↑ 555.5%
- Sales evidence
- Moderate
TCGBerg fair value · PSA 8
$356
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, $330 on Nov 10, 2026, sits 7.2% below the $356 fair value. The value weighs 29 PSA 8 sales from the past year, not the latest one alone. Its confidence band runs from $314 to $397. A PSA 10 ($43,401) is worth 17.9 times a PSA 9 ($2,424). Over the past 30 days the PSA 8 value has risen 43.4%.
TCGBerg fair value by grade
Value at each grade and ungraded condition. Log scale. Tap a row to switch the whole page.
Behind the scenes
What goes into this price, and how much we know.
Recent sales
20 trackedEach sale against the grade's fair value on the day it sold.
- $330Nov 10, 2026 · via eBaybelow fair value by 7.2%
- $2,204Nov 9, 2026 · via eBaybelow fair value by 9.1%
- $60Nov 8, 2026 · via eBay-
- $90Nov 7, 2026 · via eBayabove fair value by 37.2%
- $2,499Oct 28, 2026 · via eBayabove fair value by 23.6%
15 more sales with Pro
Up to 20 recent sales, each with its venue and its gap to fair value.
Includes a sale 26.0% 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.
- $43,4011d 0.0%7d 0.0%30d 5.2%
- Pop
- 3
- Mcap
- $130.2K
- Evidence
- Sparse
- Last
- $52,800
- $2,4241d 2.6%7d 18.9%30d 102.4%
- Pop
- 103
- Mcap
- $249.6K
- Evidence
- Limited
- Last
- $2,204
- $3561d 0.4%7d 3.0%30d 43.4%
- Pop
- 426
- Mcap
- $151.5K
- Evidence
- Moderate
- Last
- $330
| $43,401 | 3 | $130.2K | 0.0% | 0.0% | down 5.2% | up 719.6% | Sparse | $52,8001mo ago | |
| $2,424 | 103 | $249.6K | up 2.6% | up 18.9% | up 102.4% | up 169.4% | Limited | $2,2046d ago | |
| $356 | 426 | $151.5K | up 0.4% | up 3.0% | up 43.4% | up 239.4% | Moderate | $3305d ago | |
| $120 | 347 | $41.6K | down 0.2% | up 1.5% | up 17.9% | up 85.7% | Moderate | $1351mo ago | |
| $65 | 148 | $9.7K | down 0.3% | down 0.2% | up 14.3% | up 36.1% | Strong | $901w ago | |
| $52 | 36 | - | 0.0% | 0.0% | up 6.1% | up 31.0% | Moderate | $521mo ago |
PSA population report
1,063 graded copies of Dialga Normal across 6 grades. The selected grade is highlighted.
PSA 8 makes up 40% of graded copies: 426 of 1,063. It’s the most common grade for this card.
Analysis
Dialga - Normal at PSA 10 carries a TCGBerg fair value of $43,401 as of 2026-11-14. We track a TCGBerg fair value across 6 grades from XY Black Star Promos, from PSA 5 up to PSA 10. A graded population of 3 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 fallen 5.2%.