Professor's Research

Brilliant Stars · 147/172 ·Holo Rare

Illustration: Sanosuke Sakuma →

Japanese edition · 2022 Star Birth · 095 —

Market price

£1.58

based on 17 sales

Price history · RAW

2025-11-16 · £0.51 £5.35 · 2026-07-22

Cross-market · RAW median per marketplace

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

ebay.es	n=9	£1.75	+78%
ebay.de	n=2	£1.53	+55%
ebay.com	n=12	£0.98	—

Price per print

🇬🇧 Holo · EN n=20 £1.58

🇩🇪 Holo · DE n=1 £1.36

How is this value calculated?

Ladder estimate · English · ~£1.58 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe	13	2 mo	£1.58	106.12

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £1.58 · Σ g = 106.12

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

Ladder estimate · Deutsch · ~£1.36 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 0.8691 (Sprach-Faktor aus 95 Karten)	13	2 mo	£1.36	2.81

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £1.36 · Σ g = 2.81

Measured error for this era×language (backtest): ±22 %

Ladder estimate · Français · ~£2.18 gelb

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.385 (Sprach-Faktor aus 46 Karten)	13	2 mo	£2.18	2.91

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £2.18 · Σ g = 2.91

Measured error for this era×language (backtest): ±20 %

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

Ladder estimate · Italiano · ~£1.53 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 0.9732 (Sprach-Faktor aus 33 Karten)	13	2 mo	£1.53	4.34

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £1.53 · Σ g = 4.34

Measured error for this era×language (backtest): ±18 %

PSA Population EN Σ 30

PSA 10

1 3%

PSA 9

9 30%

PSA 8

13 43%

PSA ≤7

7 23%

PSA · Professor Program · as of 2026-10-09

Recent sales · 24

2026-07-22	EN	RAW UNKNOWN	Pokemon professor's research 147/172 Brillant Stars NON-HOLO · eBay	£0.55
2026-07-20	DE	RAW UNKNOWN	Pokemon - 147/172 - Forschung des Professors - Holofoil Rare · eBay	£0.85
2026-07-15	EN	RAW NM	Professor's Research 147/172 Rare Prize Pack Series Cards Po · eBay	£2.22
2026-07-15	EN	RAW LP	Professor's Research Holo 147/172 Pokemon Prize Pack Promo P · eBay	£2.20
2026-07-14	EN	RAW NM	Professor's Research - Non-Holo Rare - Brilliant Stars 147/1 · eBay	£1.51
2026-07-10	EN	RAW NM	Professor's Research 147/172 Prize Pack Series Pokemon Play! · eBay	£1.58
2026-07-01	EN	RAW UNKNOWN	The Pokemon Company Pokemon TCG Professor's Research 147/172 · eBay	£1.11
2026-06-13	EN	RAW NM	Professor's Research (Professor Rowan) - 147/172 - Holo Rare · eBay	£1.10
2026-06-11	EN	RAW UNKNOWN	Professor's Research Professor Rowan 147/172 Brilliant Stars · eBay	£0.73
2026-06-08	EN	RAW UNKNOWN	Juego de cartas coleccionables Pokémon Brilliant Stars: Prof · eBay	£1.23
2026-06-07	EN	RAW NM	Brilliant Stars 147/172 Professor’s Research NON Holo Rare P · eBay	£1.33
2026-06-05	EN	RAW NM	Professor's Research 147/172 Rare Prize Pack Series Cards NM · eBay	£2.64
2026-05-25	EN	RAW NM	Professor's Research Rowan 147/172 Brilliant Stars non holo · eBay	£5.35
2026-05-22	EN	RAW NM	Pokemon - Professor’s Research 147/172 Holo Rare - Brilliant	£0.72
2026-05-16	EN	RAW NM	Professor's Research 147/172 Prize Pack Holo Rare NM+	£1.32
2026-05-11	EN	RAW UNKNOWN	Pokemon Professor’s Research 147/172 - Play! Prize pack - Ho	£2.90
2026-05-11	EN	RAW NM	Pokemon - Professor's Research - Brilliant Stars 147/172 - N	£0.71
2026-04-19	EN	RAW NM	Pokemon TCG Professor's Research 147/172 Holo Rare Brilliant	£0.86
2026-04-17	EN	RAW NM	Professor's Research SWSH09: Brilliant Stars 147/172 Rare Ho	£1.76
2026-04-17	EN	RAW UNKNOWN	Holograma inverso Professor's Research 147/172 Raro Estrella	£1.75

Frequently asked questions

What will I get for Professor's Research Brilliant Stars 147/172 if I want to sell quickly?

Half of all sales fell between £0.86 and £1.75, with a median of £1.27. 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 Brilliant Stars 147/172 unrealistic?

The cheapest genuine sales were around £0.71. Offers well below £0.43 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.