Professor's Research

Prismatic Evolutions · 123/131 ·Common

Illustration: Teeziro →

Variant Master Ball · 123 —

Variant Poké Ball · 123 £1.04

Promo Professor Program · 123 £133.08

Market price

£0.74

based on 14 sales

Price history · RAW

2025-12-28 · £0.55 £3.38 · 2026-07-29

Cross-market · RAW median per marketplace

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

ebay.fr	n=5	£1.74	+115%
ebay.de	n=6	£1.21	+49%
ebay.nl	n=2	£1.20	+48%
ebay.es	n=7	£1.11	+37%
ebay.com	n=18	£0.81	—

Price per print

🇬🇧 Poke Ball · EN n=20 £1.30

🇩🇪 Normal · DE n=1 £0.89

🇩🇪 Poke Ball · DE n=1 £0.88

🇬🇧 Normal · EN n=15 £0.74

🇫🇷 Poke Ball · FR 1 sales · too few Last sale £0.85

How is this value calculated?

Direct market value · £0.74

Recency-weighted trimmed median of 14 NM sales (RAW; outliers trimmed against the median, newer sales weigh more, dynamic half-life).

Ladder estimate · English · ~£0.74 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe · Set -11% nachgeführt	4	3 mo	£0.74	32.65

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £0.74 · Σ g = 32.65

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

Ladder estimate · Deutsch · ~£0.89 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.1245 (Sprach-Faktor aus 92 Karten)	4	3 mo	£0.89	1.81

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £0.89 · Σ g = 1.81

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

Ladder estimate · Français · ~£1.03 gelb

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.4032 (Sprach-Faktor aus 61 Karten) · Set -12% nachgeführt	4	3 mo	£1.03	1.33

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £1.03 · Σ g = 1.33

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

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

Ladder estimate · Italiano · ~£0.68 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 0.9302 (Sprach-Faktor aus 38 Karten) · Set -12% nachgeführt	4	3 mo	£0.68	2.05

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £0.68 · Σ g = 2.05

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

PSA Population

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

Recent sales · 41

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 [Professor Elm] 123/131 Prismatic Evolu · eBay	£0.78
2026-07-22	EN	RAW NM	Professor's Research 123/131 Prismatic Evolutions Pokemon Re · 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	£1.26
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	£22.44
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	£148.04
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
2026-06-13	EN	RAW NM	Professor's Research [Professor Elm] 123/131 Prismatic Rever · eBay	£1.74
2026-06-10	EN	RAW UNKNOWN	123/131 PROFESSOR'S RESEARCH (ELM) \| COMÚN \| EVOLUCIONES PRI · eBay	£0.98
2026-06-06	EN	RAW UNKNOWN	Professor's Research [Professor Elm] 123/131 SV: Prismatic E · eBay	£1.45
2026-05-29	EN	RAW UNKNOWN	Professor's Research 123/131 Prismatic Evolutions Regular Po · eBay	£1.13

Frequently asked questions

Is it worth grading Professor's Research Prismatic Evolutions 123/131?

A PSA 10 currently sells for about £148.04, raw the card sits at £0.74 — 200.5× as much. Mathematically, submitting returns £148.04 on average, before fees and shipping. Rule of thumb: submit when the value at a realistic grade is at least double the raw value — which is the case here. Centering decides it: an off-centre card will not get a 10.

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

Half of all sales fell between £0.85 and £1.35, 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.