White Kyurem

XY Black Star Promos · XY128/211

Illustration: kawayoo → All Staff Stamp cards →

Staff Stamp — 1 sales Normal €16,78 13 sales

Market price

€17,18

How is this value calculated?

Ladder estimate · English · ~€17,18 gruen prerelease

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe	2	40 d	€17,18	16.33

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = €17,18 · Σ g = 16.33

Measured error for this era×language (backtest): ±19 %

PSA Population

No PSA numbers for this print yet — in any language.

Recent sales · 1

2026-06-26

UNKNOWN

PSA 9

Pokemon Black Star Promo XY128 White Kyurem STAFF Promo PSA

€251,00

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FAQ

Frequently asked questions

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.