Professor's Research

Prismatic Evolutions · 123/131 ·Common

Illustration: Teeziro →

Variant Master Ball · 123 $3.41

Variant Poké Ball · 123 $1.80

Promo Professor Program · 123 $51.25

Japanese edition · 2024 Starter Decks Generations · 163 —

Market price

$1.42

based on 6 sales

Price history · RAW

2025-12-28 · $0.73 $4.48 · 2026-10-10

Cross-market · RAW median per marketplace

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

ebay.fr	n=7	$1.88	+82%
ebay.de	n=9	$1.77	+71%
ebay.nl	n=2	$1.59	+53%
ebay.es	n=7	$1.47	+42%
ebay.com	n=28	$1.04	—

Price per print

🇬🇧 Normal · EN n=22 $1.42

🇩🇪 Normal · DE n=1 $1.27

How is this value calculated?

Direct market value · $1.42

Recency-weighted trimmed median of 6 NM sales (RAW; outliers trimmed against the median, newer sales weigh more, dynamic half-life).

Ladder estimate · English · ~$1.42 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe	5	2 mo	$1.42	40.82

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.42 · Σ g = 40.82

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

Ladder estimate · Deutsch · ~$1.27 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 0.8982 (Sprach-Faktor aus 92 Karten)	5	2 mo	$1.27	2.74

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.27 · Σ g = 2.74

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

Ladder estimate · Français · ~$1.63 gelb

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.2779 (Sprach-Faktor aus 59 Karten) · Set -15% nachgeführt	5	2 mo	$1.63	1.84

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.63 · Σ g = 1.84

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

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

Ladder estimate · Italiano · ~$1.41 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 0.9973 (Sprach-Faktor aus 44 Karten)	5	2 mo	$1.41	2.49

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.41 · Σ g = 2.49

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 · 58

2026-10-10	EN	RAW LP	Professor's Research [Professor Elm] 123/131 Prismatic Evolu · eBay	$1.81
2026-10-08	EN	RAW UNKNOWN	Professor's Research [Professor Elm] 123/131 Sv: Prismatic E · eBay	$1.00
2026-10-06	EN	RAW UNKNOWN	Professor's Research [Professor Elm] (Poke B... Holofoil [PR · eBay	$2.00
2026-10-06	EN	RAW NM	Professor's Research [Pro 123/131 Prismatic Evolutions Pokem · eBay	$0.99
2026-10-05	EN	RAW UNKNOWN	Professor's Research [Professor Elm] - Prismatic Evolutions · eBay	$0.99
2026-10-03	EN	RAW NM	Professor's Research (Prof Elm) 123/131 Evoluzioni Prismatic · eBay	$3.34
2026-10-02	EN	RAW UNKNOWN	Professor's Research 123/131 Reverse Holo \| Prismatic Evolut · eBay	$1.41
2026-09-27	EN	RAW UNKNOWN	2025 Pokemon Prismatic Professor's Research Professor Elm Re · eBay	$0.99
2026-09-26	EN	RAW NM	Professor's Research [Professor Elm] - 123/131 - Common (Nea · eBay	$1.00
2026-09-22	EN	RAW NM	Professor's Research 123/131 Prismatic Evolution NM Pokemon · eBay	$1.76
2026-09-13	EN	PSA 9	Professor's Research PSA 9 2025 Pokemon S&V Reverse Holo Elm · eBay	$97.08
2026-09-04	EN	RAW NM	Professor's Research [Professor Elm] 123/131 Prismatic Evo R · eBay	$1.99
2026-09-02	EN	RAW UNKNOWN	Professor's Research [Professor Elm] 123/131 Pokemon Common · eBay	$0.81
2026-09-01	EN	RAW NM	Pokemon PRE Professor's Research [Professor Elm] 123/131 NM · eBay	$1.82
2026-08-31	EN	RAW NM	Professor's Research Elm #123/131 SV Prismatic Reverse Holo · eBay	$1.77
2026-08-26	EN	RAW UNKNOWN	Professors Research 123/131 Regular · eBay	$0.98
2026-08-13	EN	RAW NM	Professor's Research [Professor Elm] Reverse Holo PRE 123/13 · eBay	$0.97
2026-07-29	EN	RAW NM	Professor's Research [Professor Elm] 123/131 Prismatic Pokem · eBay	$1.79
2026-07-22	EN	RAW NM	Professor's Research [Professor Elm] 123/131 Prismatic Evolu · eBay	$1.04
2026-07-22	EN	RAW NM	Professor's Research 123/131 Prismatic Evolutions Pokemon Re · eBay	$1.04

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FAQ

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 $1.04 and $1.81, with a median of $1.41. 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 $0.97. Offers well below $0.58 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 Last Sold determine the market value?

Last Sold 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.