Is it worth grading Mewtwo VSTAR?

SWSH: Crown Zenith: Galarian Gallery · GG44/GG70

Yes — if it grades 10. A 9 loses money at current prices. You need the 10. 9s are pooled across graders here — PriceCharting has no PSA-9-only figure.
RAW NOW$305.41TCGplayer market
PSA 10 SOLD$600.0044 completed sales
Grade 9 SOLD$287.4428 completed sales · mixed graders
IF IT GRADES 10+$270after $25 fee

A raw Mewtwo VSTAR from SWSH: Crown Zenith: Galarian Gallery currently sells for about $305.41. Across 44 completed eBay sales, a PSA 10 has a median price of $600.00. After a $25 grading fee, a 10 would net roughly $269.59. But a Grade 9 (mixed graders) has a median of $287.44 across 28 sales — which works out to −$42.97 after fees. A 9 loses money at current prices. You need the 10. 9s are pooled across graders here — PriceCharting has no PSA-9-only figure.

Every grade, with the sales behind it

GRADEMEDIANSALES ON RECORD
PSA10$600.0044 sales
CGC10P$635.008 sales
CGC10$390.009 sales
BGS10$1075.0010 sales
TAG10$630.0011 sales
ACE10$448.7311 sales
GRADE9.5$372.009 sales
GRADE9$287.4428 sales
GRADE8$256.0015 sales
GRADE7$80.008 sales

Now find a raw one to buy

Knowing a card is worth grading is the easy half. PokeSnipez watches eBay around the clock and flags raw copies of this card closing below market — so you can actually make the trade, not just read about it.

See live grade snipes →

Every figure on this page is an observed number. Raw prices come from TCGplayer; graded medians are completed eBay sales, shown with the sale count behind each one. We don't estimate, model, or fill in gaps — if a grade has no sales on record, it isn't listed. Grading outcomes are not guaranteed: most raw cards do not come back a 10, which is exactly why the 9-grade number is on this page. Where PriceCharting has no PSA-9-only figure we show its pooled 9 — PSA, BGS, CGC and SGC together — and label it as such rather than call it a PSA 9.