Kyurem ex

Black Bolt · 028/86 ·Double rare

Illustration: N-DESIGN Inc. → All Poké Ball cards →

Poké Ball £0.85 1 sales Normal £1.21 115 sales

Market price

£1.21

How is this value calculated?

Ladder estimate · English · ~£1.21 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe	56	2 mo	£1.21	457.14
de roh NM × 1.076 (Sprach-Faktor aus 93 Karten)	16	2 mo	£1.03	4.29

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £1.21 · Σ g = 461.43

Measured error for this era×language (backtest): ±16 %

Ladder estimate · Deutsch · ~£1.08 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe · Set +19% nachgeführt	16	2 mo	£1.07	130.61
en roh NM × 0.9294 (Sprach-Faktor aus 93 Karten) · Set +19% nachgeführt	56	2 mo	£1.26	4.5

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £1.08 · Σ g = 135.11

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

Ladder estimate · Français · ~£2.87 gelb

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe · Set +11% nachgeführt	2	2 mo	£3.46	16.33
en roh NM × 1.1457 (Sprach-Faktor aus 65 Karten) · Set +11% nachgeführt	56	2 mo	£1.49	2.63
de roh NM × 1.1985 (Sprach-Faktor aus 65 Karten) · Set +11% nachgeführt	16	2 mo	£1.22	1.51

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £2.87 · Σ g = 20.47

Measured error for this era×language (backtest): ±25 %

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

Ladder estimate · Italiano · ~£1.36 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.1456 (Sprach-Faktor aus 55 Karten) · Set +11% nachgeführt	56	2 mo	£1.49	3.87
de roh NM × 1.0883 (Sprach-Faktor aus 54 Karten) · Set +11% nachgeführt	16	2 mo	£1.11	1.67

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £1.36 · Σ g = 5.54

Measured error for this era×language (backtest): ±17 %

PSA Population

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

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.