| ebay.es | n=3 | $3.50 | +16% |
| ebay.com | n=10 | $3.01 | — |
How is this value calculated?
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe · Set +10% nachgeführt | 3 | 2 mo | $7.71 | 24.49 |
Measured error for this era×language (backtest): ±19 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.2688 (Sprach-Faktor aus 20 Karten) | 3 | 2 mo | $9.19 | 1.28 |
Measured error for this era×language (backtest): ±43 %
Gate not green — shown only here, never as the price.
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.0812 (Sprach-Faktor aus 14 Karten) | 3 | 2 mo | $7.84 | 1.35 |
Measured error for this era×language (backtest): ±12 %
Gate not green — shown only here, never as the price.
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| en roh NM × 1.0872 (Sprach-Faktor aus 35 Karten) | 3 | 2 mo | $7.88 | 9.05 |
Measured error for this era×language (backtest): ±14 %
Gate not green — shown only here, never as the price.
No PSA numbers for this print yet — in any language.
#139 · SEC
#146 · UR
#126
#091 · IR
#XY149
#90
#XY05 · R
#97 · UR
#82 · UR
#97A
#144 · R
#XY07
#12 · HRFrequently asked questions
What will I get for Xerneas XY Black Star Promos XY31/211 if I want to sell quickly?
Half of all sales fell between $1.99 and $4.07, with a median of $3.12. 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 Xerneas XY Black Star Promos XY31/211 unrealistic?
The cheapest genuine sales were around $1.08. Offers well below $0.65 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.