PSA 10 · Gem Mint · Onix

Onix PSA 10 Prices & Population

UltraBall tracks 31 English Onix cards, 26 of them with a PSA 10 price. In the 90 days to Nov 11, 2026, PSA's sales record shows 14 Onix PSA 10 sales worth $5,092, across the 8 cards it has sales for. PSA 10s run from $27.99 (Onix 36/78, Pokémon GO) to $950 (Onix 3/18, Southern Islands).

Prices as of Nov 12, 2026. Sales on PSA's record through Nov 11, 2026. PSA population counts as PSA publishes them.

Onix cards tracked: 31
With a PSA 10 price: 26
PSA 10 population: 1,959
PSA graded, all grades: 5,660
Median gem rate (100+ graded): 27%
PSA 10 sales, 90 days: 14
PSA 10 sales value, 90 days: $5,092
Median PSA 10 price: $44.69
Median PSA 10 over raw: 9.1×
Most valuable PSA 10: $950; Onix 3/18, Southern Islands; 4 PSA 10 sales in the 90 days to Nov 11, 2026

Ranked by PSA 10 price

Most valuable Onix PSA 10s

1. Onix 3/18
Southern Islands
$950
PSA 9
$156
Raw
$68.40
PSA 10 pop
252
Gem rate
23%
Sold 90d
4
2. 1st Edition Onix 56/102
Base Set
$778
PSA 9
$128
Raw
$20.50
PSA 10 pop
556
Gem rate
20%
Sold 90d
–
3. 1st Edition Onix 69/111
Neo Genesis
$448
PSA 9
$55.00
Raw
$4.71
PSA 10 pop
95
Gem rate
22%
Sold 90d
–
4. Brock's Onix 21/132
Gym Heroes
$238
PSA 9
$17.50
Raw
$9.97
PSA 10 pop
22
Gem rate
17%
Sold 90d
1
5. Brock's Onix 69/132
Gym Heroes
$199
PSA 9
$71.00
Raw
$1.47
PSA 10 pop
22
Gem rate
13%
Sold 90d
0
6. Shadowless Onix 56/102
Base Set
$183
PSA 9
$56.00
Raw
$3.00
PSA 10 pop
318
Gem rate
24%
Sold 90d
–
7. Onix 56/102
Base Set
$161
PSA 9
$37.60
Raw
$1.17
PSA 10 pop
571
Gem rate
29%
Sold 90d
–
8. Onix 69/109
Team Rocket Returns
$123
PSA 9
$46.29
Raw
$1.09
PSA 10 pop
28
Gem rate
44%
Sold 90d
2
9. Onix-GX 36/68
Hidden Fates
$82.99
PSA 9
$19.25
Raw
$2.96
PSA 10 pop
783
Gem rate
61%
Sold 90d
5
10. Onix 98/147
Aquapolis
$74.40
PSA 9
$25.20
Raw
$8.22
PSA 10 pop
50
Gem rate
36%
Sold 90d
–
11. Onix 69/111
Neo Genesis
$70.00
PSA 9
$25.02
Raw
$1.32
PSA 10 pop
15
Gem rate
24%
Sold 90d
0
12. Onix 9/12
McDonald's Collection 2019
$58.32
PSA 9
$44.95
Raw
$9.29
PSA 10 pop
2
Gem rate
4.3%
Sold 90d
–

Easiest Onix to gem

Highest PSA 10 rate, cards with 100+ PSA graded

Card	PSA 10s	Graded	Gem rate
Onix-GX 36/68Hidden Fates	783	1,292	61%
Onix 10/34Pokémon TCG Classic - Venusaur	96	221	43%
Onix 98/147Aquapolis	50	140	36%
Onix 56/102Base Set	571	1,949	29%
Shadowless Onix 56/102Base Set	318	1,306	24%
Onix 3/18Southern Islands	252	1,115	23%
1st Edition Onix 69/111Neo Genesis	95	441	22%
1st Edition Onix 56/102Base Set	556	2,827	20%
Brock's Onix 21/132Gym Heroes	22	126	17%
Brock's Onix 69/132Gym Heroes	22	174	13%

Hardest Onix to gem

Lowest PSA 10 rate, cards with 100+ PSA graded

Card	PSA 10s	Graded	Gem rate
Brock's Onix 69/132Gym Heroes	22	174	13%
Brock's Onix 21/132Gym Heroes	22	126	17%
1st Edition Onix 56/102Base Set	556	2,827	20%
1st Edition Onix 69/111Neo Genesis	95	441	22%
Onix 3/18Southern Islands	252	1,115	23%
Shadowless Onix 56/102Base Set	318	1,306	24%
Onix 56/102Base Set	571	1,949	29%
Onix 98/147Aquapolis	50	140	36%
Onix 10/34Pokémon TCG Classic - Venusaur	96	221	43%
Onix-GX 36/68Hidden Fates	783	1,292	61%

Gem rate is the share of PSA-graded copies that came back a 10. A rate off a handful of copies says more about who sent them in than about the card, so these two lists only count cards with at least 100 graded. The median Onix card on them gems at 23%.

Rarest PSA 10 populations

Lowest-pop Onix PSA 10s

Card	PSA 10s	Graded	Gem rate	PSA 10	Low because
Onix 69/100Stormfront	1	8	–	$40.57	Few sent in
Onix 95/165151	1	4	–	$32.74	Few sent in
Onix 103/236Unified Minds	1	1	–	$32.53	Few sent in
Onix 9/12McDonald's Collection 2019	2	46	4.3%	$58.32	Few sent in
Onix 68/163Battle Styles	2	8	–	$45.00	Few sent in
Onix 138/264Fusion Strike	2	4	–	$31.80	Few sent in
Onix 105/236Cosmic Eclipse	2	9	–	$31.77	Few sent in
Onix 36/78Pokémon GO	2	5	–	$27.99	Few sent in
Onix 90/182Paradox Rift	5	6	–	$34.99	Few sent in
Onix 65/115Unseen Forces	6	20	30%	$55.00	Few sent in

A low population is not the same as a hard card. “Few sent in” means few copies have been graded at all, or they gem at a normal rate; “Hard to grade” means at least 100 have been graded and they come back a 10 at under half the median Onix rate.

Most graded Onix cards

What collectors send to PSA most

Card	Graded	PSA 10s	PSA 9s	Gem rate
1st Edition Onix 56/102Base Set	2,827	556	1,102	20%
Onix 56/102Base Set	1,949	571	776	29%
Shadowless Onix 56/102Base Set	1,306	318	483	24%
Onix-GX 36/68Hidden Fates	1,292	783	392	61%
Onix 3/18Southern Islands	1,115	252	448	23%
1st Edition Onix 69/111Neo Genesis	441	95	214	22%
Onix 10/34Pokémon TCG Classic - Venusaur	221	96	104	43%
Brock's Onix 69/132Gym Heroes	174	22	62	13%
Onix 98/147Aquapolis	140	50	52	36%
Brock's Onix 21/132Gym Heroes	126	22	44	17%

Big population, thin trading

100+ PSA 10s, fewest PSA 10 sales for their population

Card	PSA 10s	Sold 90d	PSA 10
Onix-GX 36/68Hidden Fates	783	5	$82.99
Onix 3/18Southern Islands	252	4	$950

Biggest PSA 10 premium over raw

PSA 10 price over the raw near-mint price, both at least $5

Card	Raw	PSA 10	Premium
1st Edition Onix 56/102Base Set	$20.50	$778	38×
Brock's Onix 21/132Gym Heroes	$9.97	$238	24×
Onix 3/18Southern Islands	$68.40	$950	14×
Onix 98/147Aquapolis	$8.22	$74.40	9.1×
Onix 9/12McDonald's Collection 2019	$9.29	$58.32	6.3×
Onix 10/34Pokémon TCG Classic - Venusaur	$8.99	$50.99	5.7×

Where the jump from 9 to 10 is widest

PSA 10 price over the PSA 9 price

Card	PSA 9	PSA 10	Gap	Premium	Gem rate
Brock's Onix 21/132Gym Heroes	$17.50	$238	$221	14×	17%
1st Edition Onix 69/111Neo Genesis	$55.00	$448	$393	8.1×	22%
1st Edition Onix 56/102Base Set	$128	$778	$650	6.1×	20%
Onix 3/18Southern Islands	$156	$950	$794	6.1×	23%
Onix-GX 36/68Hidden Fates	$19.25	$82.99	$63.74	4.3×	61%
Onix 56/102Base Set	$37.60	$161	$123	4.3×	29%
Shadowless Onix 56/102Base Set	$56.00	$183	$127	3.3×	24%
Onix 70/132Mega Evolution	$10.45	$31.37	$20.92	3.0×	–
Onix 138/264Fusion Strike	$10.64	$31.80	$21.16	3.0×	–
Onix 92/130Diamond & Pearl	$16.27	$48.06	$31.79	3.0×	–

Most actively traded

The Onix PSA 10s that change hands most

Card	Sold 90d	90d value	90d median	Latest sale
Onix-GX 36/68Hidden Fates	5	$292	$49.45	$82.99 Sep 29, 2026, eBay
Onix 3/18Southern Islands	4	$4,083	$1,050	$1,250 Oct 3, 2026, eBay
Onix 69/109Team Rocket Returns	2	$280	–	$125 Sep 27, 2026, eBay
Onix 10/34Pokémon TCG Classic - Venusaur	2	$199	–	$46.82 Sep 5, 2026, eBay
Brock's Onix 21/132Gym Heroes	1	$238	–	$238 Sep 26, 2026, eBay

Cert-linked PSA 10 sales on PSA's record, each one slab: eBay, Fanatics Collect, Goldin and Heritage, plus reported auction results PSA's record misses. It runs about ten days behind, so the 30-day count is low for the newest days.

Recent verified PSA 10 sales

The newest Onix PSA 10 sales

Through Nov 11, 2026

Onix 3/18
Southern Islands · Oct 3, 2026 · eBay · best offer · cert #69250075
$1,250
Onix 3/18
Southern Islands · Oct 2, 2026 · eBay · best offer · cert #113652129
$1,200
Onix-GX 36/68
Hidden Fates · Sep 29, 2026 · eBay · best offer · cert #128547018
$82.99
Onix-GX 36/68
Hidden Fates · Sep 28, 2026 · eBay · auction · cert #56452632
$39.99
Onix 69/109
Team Rocket Returns · Sep 27, 2026 · eBay · best offer · cert #92932078
$125
Brock's Onix 21/132
Gym Heroes · Sep 26, 2026 · eBay · best offer · cert #61659889
$238
Onix 3/18
Southern Islands · Sep 23, 2026 · eBay · best offer · cert #53183439
$900
Onix-GX 36/68
Hidden Fates · Sep 20, 2026 · eBay · auction · cert #52732193
$44.50
Onix 3/18
Southern Islands · Sep 14, 2026 · Goldin Auctions · auction · cert #26983884
$733
Onix-GX 36/68
Hidden Fates · Sep 9, 2026 · eBay · auction · cert #59767679
$49.45
Onix 10/34
Pokémon TCG Classic - Venusaur · Sep 5, 2026 · eBay · auction · cert #168240933
$46.82
Onix 69/109
Team Rocket Returns · Sep 1, 2026 · eBay · Buy It Now · cert #49425651
$155
Onix 10/34
Pokémon TCG Classic - Venusaur · Sep 1, 2026 · eBay · auction · cert #88941584
$153
Onix-GX 36/68
Hidden Fates · Aug 19, 2026 · eBay · Buy It Now · cert #136909783
$74.99
Onix-GX 36/68
Hidden Fates · Aug 10, 2026 · eBay · Buy It Now · cert #146957970
$65.00
Onix-GX 36/68
Hidden Fates · Aug 7, 2026 · eBay · best offer · cert #45198316
$69.00
Onix-GX 36/68
Hidden Fates · Aug 5, 2026 · eBay · best offer · cert #56362712
$75.00
Onix 3/18
Southern Islands · Aug 2, 2026 · eBay · auction · cert #58942260
$445
Onix-GX 36/68
Hidden Fates · Jul 26, 2026 · eBay · auction · cert #50903517
$67.00
Onix 69/109
Team Rocket Returns · Jul 22, 2026 · eBay · auction · cert #154339835
$123

By era

Onix PSA 10s, era by era

	Cards	One of each	PSA 10s	PSA graded	Median gem rate	Sold 90d	90d value	Top PSA 10
Wizards of the Coast	10	$3,140	1,933	8,237	22%	5	$4,321	Onix 3/18 $950
EX	2	$178	34	83	–	2	$280	Onix 69/109 $123
Diamond & Pearl	2	$88.63	1	11	–	–	–	Onix 92/130 $48.06
HeartGold & SoulSilver	1	$44.38	0	2	–	–	–	Onix 57/95 $44.38
Black & White	1	$43.24	0	1	–	–	–	Onix 61/116 $43.24
Sun & Moon	6	$272	788	1,355	61%	5	$292	Onix-GX 36/68 $82.99
Sword & Shield	3	$105	6	17	–	–	–	Onix 68/163 $45.00
Scarlet & Violet	3	$119	102	231	43%	2	$199	Onix 10/34 $50.99
Mega Evolution	1	$31.37	0	2	–	–	–	Onix 70/132 $31.37

By set

The sets that lead Onix's PSA 10 market

Top 15 by 90-day PSA 10 sales value

	Cards	One of each	PSA 10s	PSA graded	Median gem rate	Sold 90d	90d value	Top PSA 10
Southern Islands	1	$950	252	1,115	23%	4	$4,083	Onix 3/18 $950
Hidden Fates	1	$82.99	783	1,292	61%	5	$292	Onix-GX 36/68 $82.99
Team Rocket Returns	1	$123	28	63	–	2	$280	Onix 69/109 $123
Gym Heroes	2	$437	44	300	15%	1	$238	Brock's Onix 21/132 $238
Pokémon TCG Classic - Venusaur	1	$50.99	96	221	43%	2	$199	Onix 10/34 $50.99
Base Set	3	$1,121	1,445	6,082	24%	–	–	1st Edition Onix 56/102 $778
Neo Genesis	2	$518	110	504	22%	–	–	1st Edition Onix 69/111 $448
Aquapolis	1	$74.40	50	140	36%	–	–	Onix 98/147 $74.40
McDonald's Collection 2019	1	$58.32	2	46	–	–	–	Onix 9/12 $58.32
Unseen Forces	1	$55.00	6	20	–	–	–	Onix 65/115 $55.00
Diamond & Pearl	1	$48.06	0	3	–	–	–	Onix 92/130 $48.06
Battle Styles	1	$45.00	2	8	–	–	–	Onix 68/163 $45.00
HS—Unleashed	1	$44.38	0	2	–	–	–	Onix 57/95 $44.38
Plasma Freeze	1	$43.24	0	1	–	–	–	Onix 61/116 $43.24
Stormfront	1	$40.57	1	8	–	–	–	Onix 69/100 $40.57

Every card

Every Onix PSA 10

26 cards, 3 1st Edition / Shadowless

Sold in 90 days29 of 29


Onix 3/18Southern Islands	2001	$68.40	$156	$950	252	1,115	23%	0	4	-23.9%	14×	6.1×
1st Edition Onix 56/102Base Set	1999	$20.50	$128	$778	556	2,827	20%	–	–	–	38×	6.1×
1st Edition Onix 69/111Neo Genesis	2000	$4.71	$55.00	$448	95	441	22%	–	–	–	–	8.1×
Brock's Onix 21/132Gym Heroes	2000	$9.97	$17.50	$238	22	126	17%	0	1	0.0%	24×	14×
Brock's Onix 69/132Gym Heroes	2000	$1.47	$71.00	$199	22	174	13%	0	0	0.0%	–	2.8×
Shadowless Onix 56/102Base Set	1999	$3.00	$56.00	$183	318	1,306	24%	–	–	–	–	3.3×
Onix 56/102Base Set	1999	$1.17	$37.60	$161	571	1,949	29%	–	–	+15.5%	–	4.3×
Onix 69/109Team Rocket Returns	2004	$1.09	$46.29	$123	28	63	44%	0	2	0.0%	–	2.7×
Onix-GX 36/68Hidden Fates	2019	$2.96	$19.25	$82.99	783	1,292	61%	0	5	0.0%	–	4.3×
Onix 98/147Aquapolis	2003	$8.22	$25.20	$74.40	50	140	36%	–	–	-71.8%	9.1×	3.0×
Onix 69/111Neo Genesis	2000	$1.32	$25.02	$70.00	15	63	24%	0	0	0.0%	–	2.8×
Onix 9/12McDonald's Collection 2019	2019	$9.29	$44.95	$58.32	2	46	4.3%	–	–	+3.3%	6.3×	1.3×
Onix 65/115Unseen Forces	2005	$0.91	$20.40	$55.00	6	20	30%	–	–	+34.1%	–	2.7×
Onix 10/34Pokémon TCG Classic - Venusaur	2023	$8.99	$30.00	$50.99	96	221	43%	0	2	0.0%	5.7×	1.7×
Onix 92/130Diamond & Pearl	2007	$0.45	$16.27	$48.06	0	3	–	–	–	-1.8%	–	3.0×
Onix 68/163Battle Styles	2021	$0.12	$22.00	$45.00	2	8	–	–	–	+45.8%	–	2.0×
Onix 57/95HS—Unleashed	2010	$0.36	$20.05	$44.38	0	2	–	–	–	-1.1%	–	2.2×
Onix 61/116Plasma Freeze	2013	$0.67	$16.07	$43.24	0	1	–	–	–	+13.0%	–	2.7×
Onix 69/100Stormfront	2008	$0.41	$25.00	$40.57	1	8	–	–	–	-7.5%	–	1.6×
Onix 84/110Legendary Collection	2002	$0.58	$27.15	$39.60	32	96	33%	–	–	-40.9%	–	1.5×
Onix 90/182Paradox Rift	2023	$0.14	$19.99	$34.99	5	6	–	0	0	0.0%	–	1.8×
Onix 109/214Lost Thunder	2018	$0.35	$12.95	$34.96	0	5	–	–	–	-2.7%	–	2.7×
Onix 95/165151	2023	$0.27	$11.28	$32.74	1	4	–	–	–	-3.4%	–	2.9×
Onix 103/236Unified Minds	2019	$0.20	$11.52	$32.53	1	1	–	–	–	+3.3%	–	2.8×
Onix 71/168Celestial Storm	2018	$0.27	$11.07	$31.81	0	2	–	–	–	+0.4%	–	2.9×
Onix 138/264Fusion Strike	2021	$0.19	$10.64	$31.80	2	4	–	–	–	0.0%	–	3.0×
Onix 105/236Cosmic Eclipse	2019	$0.26	$11.06	$31.77	2	9	–	–	–	0.0%	–	2.9×
Onix 70/132Mega Evolution	2025	$0.16	$10.45	$31.37	0	2	–	–	–	+0.4%	–	3.0×
Onix 36/78Pokémon GO	2022	$0.13	$24.88	$27.99	2	5	–	–	–	0.0%	–	1.1×

Gem rate from 20 PSA-graded copies. 30d move is the PSA 10 price over 28 days. Premiums need both prices at $5 or more. 1st Edition and Shadowless printings are their own rows, with their own prices and PSA counts; PSA's sales record is kept per card, so they show no sales count.

Cite these figures

UltraBall tracks 26 Onix cards with a PSA 10 price, with a combined PSA 10 population of 1,959. Across the 8 Onix cards with at least 100 PSA-graded copies, the median gem rate is 27%. PSA's sales record shows 14 Onix PSA 10 sales worth $5,092 in the 90 days to Nov 11, 2026, across the 8 of those cards it has sales for.

Source: UltraBall, ultraball.com/pokemon/onix/psa-10, observed Nov 12, 2026. Sample: every English Onix card UltraBall tracks (31); populations from PSA's population report; sales from PSA's cert-linked sales record. Method below.

How these figures are made

Population: PSA's population report for each card, as PSA publishes it. Copies sent in, not copies in existence.
Gem rate: PSA 10s over every PSA-graded copy. Shown from 20 graded; ranked, and used in medians, from 100.
Prices: UltraBall's PSA 10, PSA 9 and raw near-mint prices, the same as each card page shows. A price leaves out sales far from the rest.
Sales: Cert-linked PSA 10 sales: each tied to one slab by its PSA certificate number, so a sale is this card at this grade. The record has sales for 8 of the 31 Onix cards; the rest show “–”, not zero. 30 and 90 days count back from the newest sale on the record.
Matching: Raw and graded figures are for the same card; a 1st Edition or Shadowless printing is kept apart from the Unlimited card.
Liquidity: PSA 10 sales in 30 days over live listings; days of supply is live listings over the average daily sales.

The full UltraBall methodology

Common questions

What is the most expensive Onix PSA 10?

Onix 3/18 from Southern Islands, at about $950 in PSA 10. Next is 1st Edition Onix 56/102 (Base Set) at $778.

How many Onix PSA 10s are there?

PSA has graded 1,959 Onix cards a 10, out of 5,660 Onix cards it has graded in all, across the 31 cards UltraBall tracks. 1st Edition Onix 56/102 (Base Set) is the most graded, at 2,827 copies.

Which Onix card is hardest to grade PSA 10?

Of the Onix cards with at least 100 copies graded, Brock's Onix 69/132 (Gym Heroes) has the lowest gem rate: 13% of 174 came back a 10.

Which Onix has the lowest PSA 10 population?

Onix 69/100 (Stormfront), with 1 PSA 10 out of 8 graded. Few copies have been sent in, so the count says more about submissions than about how hard it grades.

What is the easiest Onix to gem?

Onix-GX 36/68 (Hidden Fates): 61% of its 1,292 PSA-graded copies came back a 10, the highest of the Onix cards with at least 100 graded.

How much more is a Onix PSA 10 worth than a raw copy?

Across the Onix cards with both prices, the median PSA 10 sells for 9.1× the raw near-mint price. The widest gap is 1st Edition Onix 56/102 (Base Set), 38×.