Holofile
Professor's Research (Professor Oak) 23 Celebrations

CELEBRATIONS

Professor's Research (Professor Oak) 23

Professor's Research (Professor Oak) is card 23 in Celebrations (CEL), a Sword & Shield set, released on October 8, 2021. It’s a Rare Holo illustrated by KIYOTAKA OSHIYAMA. A Near Mint copy has a market price of $0.29 as of October 17, 2026, down 9% over 30 days.

Market price · Near Mint

$0.29−9% in 30 days

Jul 19, 2026 · $0.24Low $0.23 · High $0.32Oct 17, 2026 · $0.29

As of October 17, 2026. Prices are estimates from third-party market data and are not offers to buy or sell. Holo10 in the Holofile app adds 6-month, 1-year and all-time charts.

Number
23
Rarity
Rare Holo
Released
October 8, 2021

Prices

Holo

Ungraded
ConditionMarket30 days
Near Mint$0.29−9%
Lightly Played$0.33+27%
Moderately Played$0.25+9%
Heavily Played$0.30+3%
Damaged$0.11−15%
Graded
GradeMarket30 days
PSA 10$261.63+3%
PSA 9$15.38−4%
PSA 8.5$12.500%
CGC 10$16.88+41%
CGC 9.5$8.150%
BGS 9$14.520%
SGC 10$11.000%
SGC 9.5$6.000%

Market prices as of October 17, 2026: in US dollars unless marked. Prices are estimates from third-party market data and are not offers to buy or sell.