Grade Matrix
Graded
PSA 6
-
Grade 7 guide
-
Grade 8 guide
-
Grade 9 guide
$33
PSA 10
$179
PSA 10: Last PSA 10 sale $179.00 on Apr 23, 2026 · checked Oct 25, 2026
Grade 9: No recent PSA 9 sales. PriceCharting Grade 9 guide, mixing PSA, CGC, BGS, SGC and TAG 9s.
Grade 7 and Grade 8 are PriceCharting guides across all graders (PSA, CGC, BGS, SGC, TAG).
CGC
CGC 8
-
CGC 9
-
CGC 10
$71
CGC P10
-
Availability
Availabilityi
6/10G: —
Graded: insufficient data · Sales per year: ~20 sales/yr · Raw recent sales: 8 · Grade 9 recent sales: 4 · PSA 10 recent sales: 3 · Graded copies: 108
TCGplayer Price History
NormalProduct 42443Fetched Oct 24, 3:30 AM
Weekly market
$0.40
week ending Oct 23
Weekly avg sale
$0.17
week ending Oct 23
Units sold (week)
22
week ending Oct 23
Card Value FAQ
How much is a PSA 10 Grass Energy (Base Set #99) worth?
A PSA 10 Grass Energy (Base Set #99) is currently shown at $179. GemDelta labels this as the latest stored PSA 10 sale, which is older than the sales window; no sales were found inside that window.
PSA 10 past sales
| Date | Listing | Sale |
|---|---|---|
| Apr 23, 2026 | 1999 POKEMON GAME BASE SET 1999-2000 #99 GRASS ENERGY PSA 10 #99 | $179.00 |
| Oct 10, 2025 | 1999-2000 Pokemon Game Base Set #99 Grass Energy - PSA 10 GEM MINT #99 | $41.00 |
| May 20, 2025 | PSA 10 Grass Energy 99/102 Base Set Pokemon Card 1999-2000 4th Print POP 42 | $50.40 |