Professor's Research

SWSH Black Star Promos · #SWSH178/307 · Promo

Supertype

Trainer

Artist

Yusuke Kozaki

Supporter

Market Prices

View on TCGPlayer

Updated: 5/19/2026

holofoil

Low

$0.17

Mid

$0.49

High

$19.98

Market

$0.46

Market Signals

Updated 31 days ago

Raw NM

$2.00

PriceCharting Ungraded

PSA 10

$36.00

18.0× raw

CGC 10

—

TAG 10

—

CGC Population

2 total

0 at 10

Gem rate 0.0% low sample (n=2)

TAG Population

2 total

0 at 10

Per-grade ladder

White = real market price. Blue = estimate (no real sale for that grade) — hover for how it was derived.

PSA

PSA 10

$36.00

TAG · prices estimated; real TAG counts are in the distribution above

TAG 10

$30.68

est.?

Real prices from PriceCharting's per-grade table — its generic “Grade N” reflects PSA-graded sales. CGC / BGS / TAG sub-10 grades are estimated from this card's real PSA price at that grade × that grader's 10-to-PSA-10 ratio (this card's own real pair when available, else a ratio calibrated from real catalog cards in the same era and rarity). Grades with no real anchor and low-confidence estimates are omitted — a blank beats a bad number.

Grading ROI (PSA)

Value · $25.99

Realistic

—

using gem rate

If it 10s

$8.01

upside cap

Break-even

76%

gem rate needed

Low PSA sample (0 graded) — gem rate estimate is noisy.