How is this value calculated?
| Evidence path | Sales | Age | Value vᵢ | Weight gᵢ |
|---|---|---|---|---|
| eigene rohe NM-Verkäufe | 3 | 37 d | £21.48 | 24.49 |
Measured error for this era×language (backtest): ±19 %
No PSA numbers for this print yet — in any language.
| 2026-09-29 | EN | RAW NM | Pokemon TCG Black Star Promo: Gym Badge XY210 Giovanni Pokém · eBay | £21.25 |
| 2026-07-24 | EN | RAW LP | The Pokémon Company Gym Badge XY210 Pokemon League Promo Tra · eBay | £11.21 |
| 2026-07-19 | EN | RAW UNKNOWN | Pokemon XY Black Star Promo Giovanni Gym Badge Pokemon Leagu · eBay | £28.43 |
| 2026-07-01 | EN | RAW UNKNOWN | Pokemon XY Black Star Promo Giovanni Gym Badge Pokemon Leagu · eBay | £26.15 |
| 2026-06-24 | EN | CGC 8 | XY Black Star Promo Gym Badge XY210 Pokemon League CGC 8 · eBay | £24.13 |
| 2026-06-19 | ES | RAW UNKNOWN | Gym Badge - XY210 - Sheen Holo - League - XY Black Star Prom · eBay | £40.58 |
| 2026-06-17 | EN | PSA 9 | GYM BADGE 2016 XY BLACK STAR PROMO #XY210 HOLO POKEMON LEAGU · eBay | £43.71 |
| 2026-06-11 | EN | RAW LP | Gym Badge - XY210 - Pokemon XY Promo League Promo Card - Bla · eBay | £13.26 |
| 2026-06-09 | EN | RAW UNKNOWN | Gym Badge - XY210 - Pokemon XY Promo League Promo Card - Bla | £22.03 |
| 2026-06-07 | EN | RAW NM | Gym Badge - XY210 - Pokemon XY Promo League Promo Card NM | £23.99 |
| 2026-06-04 | EN | RAW NM | Pokemon (Giovanni) GYM BADGE Card XY BLACK STAR PROMO XY210 | £21.90 |
| 2026-05-28 | EN | RAW LP | Pokemon Gym Badge XY210 Black Star Promo League LP Trainer C | £6.22 |
| 2026-05-13 | EN | PSA 9 | PSA 9 - GIOVANNI GYM BADGE XY210 - POKEMON LEAGUE - Foil Bla | £127.02 |
| 2026-04-15 | EN | RAW UNKNOWN | Pokemon TCG - Gym Badge XY210 - Giovanni Black Star League P | £13.65 |
#XY204 · C
#XY208 · C
#XY206 · C
#XY203 · C
#XY209 · C
#XY205 · C
#XY207 · C
#104 · U
#074 · U
#159 · U
#155 · U
#151 · U
#147 · U
#XY91Frequently asked questions
What will I get for Gym Badge XY Black Star Promos XY210/211 if I want to sell quickly?
Half of all sales fell between £13.26 and £26.15, with a median of £21.90. 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 Gym Badge XY Black Star Promos XY210/211 unrealistic?
The cheapest genuine sales were around £11.21. Offers well below £6.72 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.