Is it worth grading Eevee - 188/167?

SV06: Twilight Masquerade · 188/167

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$91.65TCGplayer market
PSA 10 SOLD$337.0024 completed sales
Grade 9 SOLD$90.1920 completed sales · mixed graders
IF IT GRADES 10+$220after $25 fee

A raw Eevee - 188/167 from SV06: Twilight Masquerade currently sells for about $91.65. Across 24 completed eBay sales, a PSA 10 has a median price of $337.00. After a $25 grading fee, a 10 would net roughly $220.35. But a Grade 9 (mixed graders) has a median of $90.19 across 20 sales — which works out to −$26.46 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$337.0024 sales
CGC10P$350.009 sales
CGC10$160.009 sales
TAG10$345.0010 sales
ACE10$183.988 sales
GRADE9.5$116.988 sales
GRADE9$90.1920 sales
GRADE8$75.009 sales
GRADE7$58.008 sales
GRADE6$41.003 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.

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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.