Professor's Research

25th Anniversary Collection · #3/28 · None · 2021JPN

$0.38
Market price ▲ 2.7% (30d)
Prices as of Nov 6, 2026
126graded pop
68%gem rate
59.2×PSA 10 vs raw
−$6.85EV to grade — don't
Market data

Price history

Holofoil▲ 0.0% 7d
Low $0.20Mid $0.39

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Graded market

Graded values

PSA 10 report →updated 2026-11-06
Grade 6 est.$1.90
Grade 5 est.$1.60
Grade 4 est.$1.32
Grade 3 est.$1.10
Grade 2 est.$0.90
Grade 1 est.$0.76

Grades 1–6 are estimates modeled from the raw price — PSA/CGC/BGS 7–10 and Ungraded are live tracked market values.

PSA 10 price history$22.50

PSA 10 chart is building — graded values are tracked nightly, a new point appears each day.

Graded population census · updated 2026-09-20

CGC75 graded · 61 gem 10
PSA51 graded · 25 gem 10

Population data from PriceCharting, updated monthly.

Auction sale integrity

New

Graded sales for this card from public auctions, each checked for shill/relist patterns and prices that don’t match the market. How this works →

Clean price · CGC 10
$14.40
High confidence — 9 corroborating sales
Recent sale price by grade · tracked by cert number
CGC 10
$9.00
last $9.00 · Aug 24, 2026 · 3 sales
CGC 7.5
$6.00
last $6.00 · Sep 14, 2026 · 1 sale
CGC 9
$5.00
last $6.00 · Oct 12, 2026 · 6 sales
CGC 8
$5.00
last $5.00 · Jul 27, 2026 · 1 sale
PSA 9 · Rev Holo
$17.00
last $17.00 · Aug 24, 2026 · 1 sale
CGC 10 · Rev Holo
$9.00
last $8.00 · Oct 12, 2026 · 9 sales
CGC 8.5 · Rev Holo
$6.00
last $6.00 · Aug 17, 2026 · 1 sale
Verified
CGC 10 · 4 bids · Oct 12, 2026
$8.00
Verified
CGC 9 · 2 bids · Oct 12, 2026
$6.00
Verified
CGC 10 · 7 bids · Sep 21, 2026
$24.00
Verified
CGC 9 · 1 bids · Sep 14, 2026
$5.00
Unconfirmed
CGC 7.5 · 2 bids · Sep 14, 2026
$6.00
Verified
CGC 10 · 3 bids · Aug 24, 2026
$9.00
Verified
CGC 9 · 1 bids · Aug 24, 2026
$5.00
Verified
CGC 10 · 3 bids · Aug 24, 2026
$9.00
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How much is Professor's Research #3/28 worth?

As of November 6, 2026, Professor's Research #3/28 from 25th Anniversary Collection sells for around $0.38 in raw, ungraded condition.

Grading changes the math on this one: a PSA 10 is valued around $22.50, roughly 59.2x the raw price, while a PSA 9 sits near $10.00. 75 copies have been graded to date, and 81% of them came back a 10 — worth knowing before you pay grading fees.

These figures come from nightly market-data syncs verified against completed sales. Use the chart above to see the trend before you buy or sell.

Collecting 25th Anniversary Collection?Full master set guide — every card, chase list, and completion cost→

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