Professor's Research

Scarlet & Violet · 189/198 ·Rare

Illustration: kirisAki →

Reverse Holo £1.33 10 sales Normal £0.99 41 sales

Market price

£1.33

Price history · RAW

2026-04-23 · £0.79 £2.11 · 2026-07-09

Cross-market · RAW median per marketplace

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

ebay.es	n=5	£1.59	+43%
ebay.com	n=3	£1.11	—

How is this value calculated?

Ladder estimate · English · ~£1.33 gruen reverse_holo

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe	4	3 mo	£1.33	32.65

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £1.33 · Σ g = 32.65

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

Ladder estimate · Deutsch · ~£1.03 gruen reverse_holo

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 0.7727 (Sprach-Faktor aus 5 Karten)	4	3 mo	£1.03	7.13

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £1.03 · Σ g = 7.13

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

PSA Population

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

Recent sales · 10

2026-07-09	EN	RAW NM	Professor's Research Reverse Holo Rare SV01 Scarlet & Violet · eBay	£1.11
2026-06-20	EN	RAW UNKNOWN	Pokemon TCG Scarlet & Violet Base Professor's Research Rever · eBay	£1.39
2026-06-18	EN	RAW LP	Pokémon TCG Professor's Research Scarlet & Violet 189/198 Re · eBay	£1.96
2026-06-17	EN	RAW NM	Professor's Research (Sada) 189/198 Scarlet & Violet Pokemon	£1.77
2026-06-12	EN	RAW UNKNOWN	Professor's Research - Juego Base Escarlata y Violeta 189/19	£2.11
2026-06-05	EN	RAW NM	Professor's Research (Sada) 189/198 Scarlet & Violet Reverse	£1.59
2026-05-21	DE	RAW NM	Forschung Des Professors 189/198 Reverse Holo Karmesin und P	£1.22
2026-05-10	EN	RAW UNKNOWN	Professor's Research 189/198 - REVERSE HOLO - SV01: Scarlet	£1.55
2026-05-04	EN	RAW NM	Pokemon - Professor's Research - Reverse Holo SV01 189/198 N	£0.79
2026-04-23	EN	RAW UNKNOWN	Professor's Research (Sada) - 189/198 - Reverse Holo - Pokem	£1.33

Frequently asked questions

What will I get for Professor's Research Scarlet & Violet 189/198 if I want to sell quickly?

Half of all sales fell between £1.22 and £1.77, with a median of £1.39. 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 Scarlet & Violet 189/198 unrealistic?

The cheapest genuine sales were around £1.11. Offers well below £0.67 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.