Karen · Worlds Stamp

XY Black Star Promos · XY177a/211 ·Common

Illustration: You Iribi → All Worlds Stamp cards →

Unlimited · 2013 XY Black Star Promos · XY177a £45.50

Market price

£51.94

based on 1 sales

How is this value calculated?

Ladder estimate · English · ~£45.50 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe	27	15 d	£45.66	220.41
eigene LP-Verkäufe ÷ 0.7356	20	26 d	£78.37	2.79
eigene PSA7-Verkäufe ÷ 1.5935	7	26 d	£32.39	1.72
eigene PSA8-Verkäufe ÷ 2.8216	13	37 d	£22.24	0.94
eigene PSA9-Verkäufe ÷ 8.5259	4	2 mo	£14.08	0.84

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £45.50 · Σ g = 226.7

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

Ladder estimate · Deutsch · ~£38.31 rot

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 0.8391 (Sprach-Faktor aus 19 Karten)	27	15 d	£38.31	1.4

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £38.31 · Σ g = 1.4

Measured error for this era×language (backtest): ±43 %

Gate not green — shown only here, never as the price.

Ladder estimate · Français · ~£24.05 rot

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 0.5269 (Sprach-Faktor aus 18 Karten)	27	15 d	£24.05	0.31

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £24.05 · Σ g = 0.31

Measured error for this era×language (backtest): ±12 %

Gate not green — shown only here, never as the price.

Ladder estimate · Italiano · ~£49.64 rot

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.0872 (Sprach-Faktor aus 35 Karten)	27	15 d	£49.64	13.47

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £49.64 · Σ g = 13.47

Measured error for this era×language (backtest): ±14 %

Gate not green — shown only here, never as the price.

PSA Population

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

Recent sales · 1

2026-05-30

RAW LP

Pokemon Card Karen LP Alternate Art Promos Promo XY177a + Fr

£51.94

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.