| ebay.it | n=6 | €2,23 | +93% |
| ebay.co.uk | n=3 | €2,13 | +84% |
| ebay.es | n=3 | €2,09 | +80% |
| ebay.com | n=8 | €1,16 | — |
How is this value calculated?
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 7 | 49 d | €1,79 | 57.14 |
| eigene LP-Verkäufe ÷ 0.7884 | 5 | 50 d | €1,75 | 6.26 |
| it roh NM × 0.8241 (Sprach-Faktor aus 31 Karten) | 4 | 57 d | €2,02 | 5.29 |
Measured error for this era×language (backtest): ±16 %
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| it roh NM × 1.054 (Sprach-Faktor aus 29 Karten) | 4 | 57 d | €2,58 | 2.81 |
| en roh NM × 1.0069 (Sprach-Faktor aus 11 Karten) | 7 | 49 d | €1,80 | 0.26 |
Measured error for this era×language (backtest): ±34 %
Gate not green — shown only here, never as the price.
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| it roh NM × 1.0054 (Sprach-Faktor aus 9 Karten) | 4 | 57 d | €2,46 | 4.32 |
| en roh NM × 1.1893 (Sprach-Faktor aus 36 Karten) | 7 | 49 d | €2,13 | 3.71 |
Measured error for this era×language (backtest): ±9 %
Gate not green — shown only here, never as the price.
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 4 | 57 d | €2,45 | 32.65 |
| en roh NM × 1.2135 (Sprach-Faktor aus 31 Karten) | 7 | 49 d | €2,17 | 7.18 |
Measured error for this era×language (backtest): ±17 %
Gate not green — shown only here, never as the price.
No PSA numbers for this print yet — in any language.
| 2026-07-26 | UNKNOWN | RAW UNKNOWN | Pokemon - Cosmog Holo - SM42 - Black Star Promo Card | €1,90 |
| 2026-07-25 | EN | RAW NM | Cosmog SM42 Sm Holo Black Star Promo NM/M | €0,92 |
| 2026-07-18 | EN | PSA 7 | 2017 POKEMON SM BLACK STAR PROMO #SM42 COSMOG-HOLO PSA 7 | €6,98 |
| 2026-07-14 | EN | RAW LP | Cosmog Holo Promo SM Promos SM42 LP | €1,40 |
| 2026-07-11 | EN | RAW UNKNOWN | Cosmog Holo SM Black Star Promo 2017 Pokemon Card SM42 -786 | €2,09 |
| 2026-07-07 | IT | RAW NM | Cosmog - SM42 SM Promos Pokemon TCG NM Holo viene aperta una | €2,64 |
| 2026-07-07 | EN | RAW LP | Pokemon Cosmog SM42 - SM Black Star Promo - Excellent | €1,32 |
| 2026-07-06 | EN | RAW HP | Cosmog General Mills Promo SM42 Holo Pokemon HP | €5,84 |
| 2026-07-02 | EN | RAW UNKNOWN | Cosmog Holo Promo SM Promos SM42 HP | €0,92 |
| 2026-06-27 | ES | RAW LP | Cosmog SM42 - SM Black Star - Tarjeta Pokémon Holo Promocion | €2,26 |
| 2026-06-03 | ES | RAW LP | Pokemon Cosmog SM42 - SM Black Star Promo - Excellent Se abr | €1,68 |
| 2026-06-02 | IT | RAW NM | Cosmog Holo Promo SM Promos SM42 NM viene aperta una nuova f | €1,91 |
| 2026-06-01 | UNKNOWN | RAW UNKNOWN | Pokemon Card TCG: Cosmog SM42 - Black Star Promo Nieuw venst | €1,51 |
| 2026-05-25 | EN | RAW LP | Pokemon TCG - Cosmog SM42 - Sun & Moon - Holo Black Star Pro | €0,61 |
| 2026-05-24 | IT | RAW NM | Cosmog - SM Promos SM42 2016 NM viene aperta una nuova fines | €2,13 |
| 2026-05-16 | IT | RAW UNKNOWN | Pokemon Card - Cosmog - Sun & Moon Promo SM42 Holo Promo vie | €2,13 |
| 2026-05-12 | IT | RAW NM | Cosmog - SM42 SM Promos Pokemon TCG NM Holo viene aperta una | €3,02 |
| 2026-05-09 | IT | RAW MP | Cosmog - Promo Holo SM Promos SM42 MP Pokémon TCG viene aper | €2,34 |
| 2026-05-07 | EN | RAW NM | Cosmog - Holo Promo SM Promos SM42 NM | €0,92 |
| 2026-04-29 | EN | RAW UNKNOWN | Cosmog #SM42 SM Promos | €1,57 |
#SM103 · R
#SM104 · R
#SM17 · R
#SM16 · R
#69 · C
#100 · C
#99 · C
#100 · C
#13 · HR
#64 · C
#60 · C
#SM191
#SM241Frequently asked questions
What will I get for Cosmog SM Black Star Promos SM42/248 if I want to sell quickly?
Half of all sales fell between €1,40 and €2,26, with a median of €1,91. 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 Cosmog SM Black Star Promos SM42/248 unrealistic?
The cheapest genuine sales were around €0,92. Offers well below €0,55 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.