Professor's Research

Prismatic Evolutions · 123/131 ·Common

Illustration: Teeziro →

Variant Master Ball · 123 £2.57

Variant Poké Ball · 123 £1.43

Promo Professor Program · 123 £53.85

Market price

£0.79

based on 5 sales

Price history · RAW

2025-12-28 · £0.55 £3.38 · 2026-10-06

Cross-market · RAW median per marketplace

Spread vs. cheapest market — before shipping/duty/fees

ebay.fr	n=6	£1.58	+95%
ebay.de	n=6	£1.21	+49%
ebay.nl	n=2	£1.20	+48%
ebay.es	n=7	£1.11	+37%
ebay.com	n=20	£0.81	—

Price per print

🇬🇧 Normal · EN n=17 £0.79

🇩🇪 Normal · DE n=1 £0.78

How is this value calculated?

Direct market value · £0.79

Recency-weighted trimmed median of 5 NM sales (RAW; outliers trimmed against the median, newer sales weigh more, dynamic half-life).

Ladder estimate · English · ~£0.79 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe	4	3 mo	£0.79	32.65

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £0.79 · Σ g = 32.65

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

Ladder estimate · Deutsch · ~£0.78 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 0.9809 (Sprach-Faktor aus 92 Karten)	4	3 mo	£0.78	1.48

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £0.78 · Σ g = 1.48

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

Ladder estimate · Français · ~£0.90 gelb

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.3296 (Sprach-Faktor aus 58 Karten) · Set -23% nachgeführt	4	3 mo	£0.90	1.56

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £0.90 · Σ g = 1.56

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

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

Ladder estimate · Italiano · ~£0.71 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 0.8953 (Sprach-Faktor aus 39 Karten)	4	3 mo	£0.71	2.28

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £0.71 · Σ g = 2.28

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

PSA Population EN Σ 19

PSA 10

2 11%

PSA 9

8 42%

PSA 8

7 37%

PSA ≤7

2 11%

PSA · Professor Program · as of 2026-10-08

Recent sales · 45

2026-10-06	EN	RAW UNKNOWN	Professor's Research [Professor Elm] (Poke B... Holofoil [PR · eBay	£1.51
2026-10-03	EN	RAW NM	Professor's Research (Prof Elm) 123/131 Evoluzioni Prismatic · eBay	£2.52
2026-09-27	EN	RAW UNKNOWN	2025 Pokemon Prismatic Professor's Research Professor Elm Re · eBay	£0.75
2026-09-26	EN	RAW NM	Professor's Research [Professor Elm] - 123/131 - Common (Nea · eBay	£0.75
2026-07-29	EN	RAW NM	Professor's Research [Professor Elm] 123/131 Prismatic Pokem · eBay	£1.35
2026-07-22	EN	RAW NM	Professor's Research 123/131 Prismatic Evolutions Pokemon Re · eBay	£0.78
2026-07-22	EN	RAW NM	Professor's Research [Professor Elm] 123/131 Prismatic Evolu · eBay	£0.78
2026-07-21	EN	RAW LP	Professor's Research Elm 123/131 Pokemon Prismatic Evolution · eBay	£1.24
2026-07-19	DE	RAW UNKNOWN	Forschung des Professors 123/131 Deutsch Prismatische Entwic · eBay	£0.85
2026-07-08	EN	RAW NM	Professor's Research Reverse Holo NM 123/131 SV: Prismatic E · eBay	£1.86
2026-06-29	EN	RAW NM	Professor's Research 123/131 Prismatic Evolutions Reverse Ho · eBay	£1.25
2026-06-29	EN	RAW UNKNOWN	Professor's Research Professor Elm 123/131 English reverse h · eBay	£0.78
2026-06-27	EN	RAW NM	Professor's Research 123/131 Prismatic Evolutions Pokemon NM · eBay	£0.96
2026-06-26	EN	RAW NM	Professor's Research 123/131 Common Prismatic Evolutions Pok · eBay	£1.56
2026-06-25	EN	PSA 9	2025 POKEMON PRE EN-PRISMATIC EVOLUTIONS #123 PROFESSOR'S RE · eBay	£22.41
2026-06-23	EN	RAW UNKNOWN	Professor's Research [Professor Elm] SV: Prismatic Evolution · eBay	£1.59
2026-06-22	EN	RAW NM	Professor's Research [Professor Elm] - 123/131 - Common - Ne · eBay	£0.73
2026-06-20	EN	PSA 10	2025 Pokemon Prismatic Evolutions Professor's Research Rever · eBay	£147.84
2026-06-19	EN	RAW UNKNOWN	Professor's Research 123/131 Prismatic Evolutions English re · eBay	£0.73
2026-06-14	EN	RAW UNKNOWN	Pokemon TCG - Professors Research - Reverse Holo -123/131 - · eBay	£1.01

Frequently asked questions

What will I get for Professor's Research Prismatic Evolutions 123/131 if I want to sell quickly?

Half of all sales fell between £0.78 and £1.42, with a median of £1.06. 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 Professor's Research Prismatic Evolutions 123/131 unrealistic?

The cheapest genuine sales were around £0.73. Offers well below £0.44 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.