PSA 10 · Gem Mint · Keldeo
Keldeo PSA 10 Prices & Population
UltraBall tracks 22 English Keldeo cards, 19 of them with a PSA 10 price. In the 90 days to Oct 3, 2026, PSA's sales record shows 135 Keldeo PSA 10 sales worth $64,728, across the 14 cards it has sales for. PSA 10s run from $31.14 (Keldeo 46/195, Silver Tempest) to $27,600 (Keldeo-EX 142/149, Boundaries Crossed).
Prices as of Oct 15, 2026. Sales on PSA's record through Oct 3, 2026. PSA population counts as PSA publishes them.
- Keldeo cards tracked
- 22
- With a PSA 10 price
- 19
- PSA 10 population
- 5,646
- PSA graded, all grades
- 12,825
- Median gem rate (100+ graded)
- 43%
- PSA 10 sales, 90 days
- 135
- PSA 10 sales value, 90 days
- $64,728
- Median PSA 10 price
- $176
- Median PSA 10 over raw
- 22×
Ranked by PSA 10 price
Most valuable Keldeo PSA 10s
1. Keldeo-EX 142/149
Boundaries Crossed
$27,600
- PSA 9
- $725
- Raw
- $113
- PSA 10 pop
- 17
- Gem rate
- 5.3%
- Sold 90d
- 0
2. Keldeo XY118
XY Black Star Promos
$14,000
- PSA 9
- $235
- Raw
- $19.95
- PSA 10 pop
- 13
- Gem rate
- 3.0%
- Sold 90d
- 3
3. Keldeo XY191
XY Black Star Promos
$3,150
- PSA 9
- $100
- Raw
- $4.63
- PSA 10 pop
- 15
- Gem rate
- 14%
- Sold 90d
- 1
4. Keldeo-EX BW61
BW Black Star Promos
$2,962
- PSA 9
- $200
- Raw
- $3.26
- PSA 10 pop
- 11
- Gem rate
- 13%
- Sold 90d
- 2
5. Keldeo-EX 45/113
Legendary Treasures
$1,317
- PSA 9
- $47.99
- Raw
- $4.66
- PSA 10 pop
- 9
- Gem rate
- 9.4%
- Sold 90d
- 1
6. Keldeo-GX 240/236
Unified Minds
$450
- PSA 9
- $40.00
- Raw
- $23.13
- PSA 10 pop
- 122
- Gem rate
- 45%
- Sold 90d
- 2
7. Keldeo-GX 219/236
Unified Minds
$285
- PSA 9
- $35.00
- Raw
- $12.08
- PSA 10 pop
- 116
- Gem rate
- 40%
- Sold 90d
- 3
8. Keldeo GG07
Crown Zenith Galarian Gallery
$211
- PSA 9
- $28.40
- Raw
- $17.00
- PSA 10 pop
- 1,433
- Gem rate
- 37%
- Sold 90d
- 40
9. Keldeo-EX 49/149
Boundaries Crossed
$210
- PSA 9
- $34.00
- Raw
- $1.50
- PSA 10 pop
- 198
- Gem rate
- 43%
- Sold 90d
- 6
10. Keldeo ex 167/86
White Flare
$176
- PSA 9
- $59.90
- Raw
- $63.90
- PSA 10 pop
- 2,757
- Gem rate
- 53%
- Sold 90d
- 58
11. Keldeo-GX 47/236
Unified Minds
$150
- PSA 9
- $36.00
- Raw
- $3.04
- PSA 10 pop
- 146
- Gem rate
- 56%
- Sold 90d
- 4
12. Keldeo BW60
BW Black Star Promos
$90.42
- PSA 9
- $82.50
- Raw
- $2.75
- PSA 10 pop
- 1
- Gem rate
- –
- Sold 90d
- –
Easiest Keldeo to gem
Highest PSA 10 rate, cards with 100+ PSA graded
| Card | PSA 10s | Graded | Gem rate |
|---|---|---|---|
| Keldeo ex 159/86White Flare | 459 | 675 | 68% |
| Keldeo-GX 47/236Unified Minds | 146 | 259 | 56% |
| Keldeo V 53/202Sword & Shield | 195 | 350 | 56% |
| Keldeo ex 167/86White Flare | 2,757 | 5,203 | 53% |
| Keldeo ex 30/86White Flare | 91 | 193 | 47% |
| Keldeo-GX 240/236Unified Minds | 122 | 271 | 45% |
| Keldeo-EX 49/149Boundaries Crossed | 198 | 464 | 43% |
| Keldeo-GX 219/236Unified Minds | 116 | 290 | 40% |
| Keldeo GG07Crown Zenith Galarian Gallery | 1,433 | 3,822 | 37% |
| Keldeo XY191XY Black Star Promos | 15 | 110 | 14% |
Hardest Keldeo to gem
Lowest PSA 10 rate, cards with 100+ PSA graded
| Card | PSA 10s | Graded | Gem rate |
|---|---|---|---|
| Keldeo XY118XY Black Star Promos | 13 | 438 | 3.0% |
| Keldeo-EX 142/149Boundaries Crossed | 17 | 321 | 5.3% |
| Keldeo XY191XY Black Star Promos | 15 | 110 | 14% |
| Keldeo GG07Crown Zenith Galarian Gallery | 1,433 | 3,822 | 37% |
| Keldeo-GX 219/236Unified Minds | 116 | 290 | 40% |
| Keldeo-EX 49/149Boundaries Crossed | 198 | 464 | 43% |
| Keldeo-GX 240/236Unified Minds | 122 | 271 | 45% |
| Keldeo ex 30/86White Flare | 91 | 193 | 47% |
| Keldeo ex 167/86White Flare | 2,757 | 5,203 | 53% |
| Keldeo V 53/202Sword & Shield | 195 | 350 | 56% |
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 Keldeo card on them gems at 44%.
Rarest PSA 10 populations
Lowest-pop Keldeo PSA 10s
| Card | PSA 10s | Graded | Gem rate | PSA 10 | Low because |
|---|---|---|---|---|---|
| Keldeo BW60BW Black Star Promos | 1 | 13 | – | $90.42 | Few sent in |
| Keldeo 44/162Temporal Forces | 1 | 2 | – | $31.27 | Few sent in |
| Keldeo 46/195Silver Tempest | 1 | 2 | – | $31.14 | Few sent in |
| Keldeo-EX 45/113Legendary Treasures | 9 | 96 | 9.4% | $1,317 | Few sent in |
| Keldeo-EX BW61BW Black Star Promos | 11 | 85 | 13% | $2,962 | Few sent in |
| Keldeo XY118XY Black Star Promos | 13 | 438 | 3.0% | $14,000 | Hard to grade |
| Keldeo XY191XY Black Star Promos | 15 | 110 | 14% | $3,150 | Hard to grade |
| Keldeo-EX 142/149Boundaries Crossed | 17 | 321 | 5.3% | $27,600 | Hard to grade |
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 Keldeo rate.
Most graded Keldeo cards
What collectors send to PSA most
| Card | Graded | PSA 10s | PSA 9s | Gem rate |
|---|---|---|---|---|
| Keldeo ex 167/86White Flare | 5,203 | 2,757 | 2,042 | 53% |
| Keldeo GG07Crown Zenith Galarian Gallery | 3,822 | 1,433 | 1,927 | 37% |
| Keldeo ex 159/86White Flare | 675 | 459 | 178 | 68% |
| Keldeo-EX 49/149Boundaries Crossed | 464 | 198 | 196 | 43% |
| Keldeo XY118XY Black Star Promos | 438 | 13 | 69 | 3.0% |
| Keldeo V 53/202Sword & Shield | 350 | 195 | 129 | 56% |
| Keldeo-EX 142/149Boundaries Crossed | 321 | 17 | 96 | 5.3% |
| Keldeo-GX 219/236Unified Minds | 290 | 116 | 130 | 40% |
| Keldeo-GX 240/236Unified Minds | 271 | 122 | 91 | 45% |
| Keldeo-GX 47/236Unified Minds | 259 | 146 | 94 | 56% |
Big population, thin trading
100+ PSA 10s, fewest PSA 10 sales for their population
| Card | PSA 10s | Sold 90d | PSA 10 |
|---|---|---|---|
| Keldeo V 53/202Sword & Shield | 195 | 1 | $50.00 |
| Keldeo-GX 240/236Unified Minds | 122 | 2 | $450 |
| Keldeo ex 167/86White Flare | 2,757 | 58 | $176 |
| Keldeo ex 159/86White Flare | 459 | 11 | $44.00 |
| Keldeo-GX 219/236Unified Minds | 116 | 3 | $285 |
| Keldeo-GX 47/236Unified Minds | 146 | 4 | $150 |
| Keldeo GG07Crown Zenith Galarian Gallery | 1,433 | 40 | $211 |
| Keldeo-EX 49/149Boundaries Crossed | 198 | 6 | $210 |
Biggest PSA 10 premium over raw
PSA 10 price over the raw near-mint price, both at least $5
| Card | Raw | PSA 10 | Premium |
|---|---|---|---|
| Keldeo XY118XY Black Star Promos | $19.95 | $14,000 | 702× |
| Keldeo-EX 142/149Boundaries Crossed | $113 | $27,600 | 244× |
| Keldeo-GX 219/236Unified Minds | $12.08 | $285 | 24× |
| Keldeo-GX 240/236Unified Minds | $23.13 | $450 | 19× |
| Keldeo GG07Crown Zenith Galarian Gallery | $17.00 | $211 | 12× |
| Keldeo ex 167/86White Flare | $63.90 | $176 | 2.8× |
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 |
|---|---|---|---|---|---|
| Keldeo XY118XY Black Star Promos | $235 | $14,000 | $13,765 | 60× | 3.0% |
| Keldeo-EX 142/149Boundaries Crossed | $725 | $27,600 | $26,875 | 38× | 5.3% |
| Keldeo XY191XY Black Star Promos | $100 | $3,150 | $3,050 | 32× | 14% |
| Keldeo-EX 45/113Legendary Treasures | $47.99 | $1,317 | $1,269 | 27× | 9.4% |
| Keldeo-EX BW61BW Black Star Promos | $200 | $2,962 | $2,762 | 15× | 13% |
| Keldeo-GX 240/236Unified Minds | $40.00 | $450 | $410 | 11× | 45% |
| Keldeo-GX 219/236Unified Minds | $35.00 | $285 | $250 | 8.1× | 40% |
| Keldeo GG07Crown Zenith Galarian Gallery | $28.40 | $211 | $183 | 7.4× | 37% |
| Keldeo-EX 49/149Boundaries Crossed | $34.00 | $210 | $176 | 6.2× | 43% |
| Keldeo V 53/202Sword & Shield | $10.00 | $50.00 | $40.00 | 5.0× | 56% |
Most actively traded
The Keldeo PSA 10s that change hands most
| Card | Sold 30d | Sold 90d | 90d value | 90d median | Latest sale |
|---|---|---|---|---|---|
| Keldeo ex 167/86White Flare | 16 | 58 | $11,372 | $198 | $190 Oct 3, 2026, eBay |
| Keldeo GG07Crown Zenith Galarian Gallery | 7 | 40 | $8,008 | $200 | $212 Oct 3, 2026, eBay |
| Keldeo ex 159/86White Flare | 2 | 11 | $489 | $43.69 | $46.20 Oct 3, 2026, eBay |
| Keldeo-EX 49/149Boundaries Crossed | 3 | 6 | $1,165 | $204 | $197 Oct 2, 2026, eBay |
| Keldeo-GX 47/236Unified Minds | 1 | 4 | $549 | $139 | $150 Sep 22, 2026, Fanatics Collect |
| Keldeo XY118XY Black Star Promos | 2 | 3 | $30,320 | $12,600 | $14,000 Sep 28, 2026, eBay |
| Keldeo-GX 219/236Unified Minds | 2 | 3 | $785 | $250 | $285 Sep 28, 2026, eBay |
| Keldeo ex 30/86White Flare | 0 | 3 | $141 | $46.00 | $45.00 Sep 8, 2026, eBay |
| Keldeo-EX BW61BW Black Star Promos | 1 | 2 | $5,923 | – | $4,000 Sep 28, 2026, eBay |
| Keldeo-GX 240/236Unified Minds | 1 | 2 | $775 | – | $450 Sep 20, 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 Keldeo PSA 10 sales
Through Oct 3, 2026
- Keldeo GG07$212
Crown Zenith Galarian Gallery · Oct 3, 2026 ·
eBay · auction · cert #111542877 - Keldeo ex 167/86$190
White Flare · Oct 3, 2026 ·
eBay · Buy It Now · cert #138775251 - Keldeo ex 159/86$46.20
White Flare · Oct 3, 2026 ·
eBay · best offer · cert #142185176 - Keldeo-EX 45/113$2,000
Legendary Treasures · Oct 2, 2026 ·
eBay · Buy It Now · cert #48405503 - Keldeo GG07$250
Crown Zenith Galarian Gallery · Oct 2, 2026 ·
eBay · best offer · cert #172631415 - Keldeo-EX 49/149$197
Boundaries Crossed · Oct 2, 2026 ·
eBay · auction · cert #82216949 - Keldeo-EX 49/149$212
Boundaries Crossed · Sep 29, 2026 ·
eBay · best offer · cert #75221055 - Keldeo ex 167/86$186
White Flare · Sep 29, 2026 ·
eBay · auction · cert #136237905 - Keldeo ex 167/86$185
White Flare · Sep 29, 2026 ·
eBay · Buy It Now · cert #141261131 - Keldeo XY118$14,000
XY Black Star Promos · Sep 28, 2026 ·
eBay · best offer · cert #49364265 - Keldeo XY118$12,600
XY Black Star Promos · Sep 28, 2026 ·
Fanatics Collect · auction · cert #67989897 - Keldeo-EX BW61$4,000
BW Black Star Promos · Sep 28, 2026 ·
eBay · best offer · cert #69082103 - Keldeo-GX 219/236$285
Unified Minds · Sep 28, 2026 ·
eBay · auction · cert #163614526 - Keldeo ex 167/86$175
White Flare · Sep 28, 2026 ·
eBay · best offer · cert #137261220 - Keldeo ex 167/86$150
White Flare · Sep 28, 2026 ·
eBay · best offer · cert #147268399 - Keldeo-GX 219/236$250
Unified Minds · Sep 27, 2026 ·
eBay · best offer · cert #142688093 - Keldeo GG07$200
Crown Zenith Galarian Gallery · Sep 27, 2026 ·
Fanatics Collect · best offer · cert #126164787 - Keldeo ex 159/86$44.00
White Flare · Sep 26, 2026 ·
eBay · Buy It Now · cert #133242058 - Keldeo ex 167/86$190
White Flare · Sep 25, 2026 ·
eBay · Buy It Now · cert #167874061 - Keldeo-EX 49/149$210
Boundaries Crossed · Sep 24, 2026 ·
eBay · best offer · cert #138219386
By era
Keldeo PSA 10s, era by era
| Cards | One of each | PSA 10s | PSA graded | Median gem rate | Sold 90d | 90d value | Top PSA 10 | |
|---|---|---|---|---|---|---|---|---|
| Black & White | 6 | $32,220 | 236 | 982 | 24% | 9 | $9,088 | Keldeo-EX 142/149 $27,600 |
| XY | 2 | $17,150 | 28 | 548 | 8.3% | 4 | $33,470 | Keldeo XY118 $14,000 |
| Sun & Moon | 3 | $885 | 384 | 820 | 45% | 9 | $2,108 | Keldeo-GX 240/236 $450 |
| Sword & Shield | 3 | $292 | 1,629 | 4,174 | 47% | 41 | $8,058 | Keldeo GG07 $211 |
| Scarlet & Violet | 4 | $293 | 3,308 | 6,073 | 53% | 72 | $12,003 | Keldeo ex 167/86 $176 |
| Mega Evolution | 1 | $32.58 | 0 | 1 | – | – | – | Keldeo 19/86 $32.58 |
By set
The sets that lead Keldeo'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 | |
|---|---|---|---|---|---|---|---|---|
| XY Black Star Promos | 2 | $17,150 | 28 | 548 | 8.3% | 4 | $33,470 | Keldeo XY118 $14,000 |
| White Flare | 3 | $262 | 3,307 | 6,071 | 53% | 72 | $12,003 | Keldeo ex 167/86 $176 |
| Crown Zenith Galarian Gallery | 1 | $211 | 1,433 | 3,822 | 37% | 40 | $8,008 | Keldeo GG07 $211 |
| BW Black Star Promos | 2 | $3,052 | 12 | 98 | – | 2 | $5,923 | Keldeo-EX BW61 $2,962 |
| Unified Minds | 3 | $885 | 384 | 820 | 45% | 9 | $2,108 | Keldeo-GX 240/236 $450 |
| Legendary Treasures | 1 | $1,317 | 9 | 96 | – | 1 | $2,000 | Keldeo-EX 45/113 $1,317 |
| Boundaries Crossed | 3 | $27,851 | 215 | 788 | 24% | 6 | $1,165 | Keldeo-EX 142/149 $27,600 |
| Sword & Shield | 1 | $50.00 | 195 | 350 | 56% | 1 | $50.00 | Keldeo V 53/202 $50.00 |
| Chaos Rising | 1 | $32.58 | 0 | 1 | – | – | – | Keldeo 19/86 $32.58 |
| Temporal Forces | 1 | $31.27 | 1 | 2 | – | – | – | Keldeo 44/162 $31.27 |
| Silver Tempest | 1 | $31.14 | 1 | 2 | – | – | – | Keldeo 46/195 $31.14 |
Every card
Every Keldeo PSA 10
19 cards
| Keldeo-EX 142/149Boundaries Crossed | 2012 | $113 | $725 | $27,600 | 17 | 321 | 5.3% | 0 | 0 | +352.4% | 244× | 38× |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Keldeo XY118XY Black Star Promos | 2013 | $19.95 | $235 | $14,000 | 13 | 438 | 3.0% | 2 | 3 | – | 702× | 60× |
| Keldeo XY191XY Black Star Promos | 2013 | $4.63 | $100 | $3,150 | 15 | 110 | 14% | 0 | 1 | – | – | 32× |
| Keldeo-EX BW61BW Black Star Promos | 2011 | $3.26 | $200 | $2,962 | 11 | 85 | 13% | 1 | 2 | – | – | 15× |
| Keldeo-EX 45/113Legendary Treasures | 2013 | $4.66 | $47.99 | $1,317 | 9 | 96 | 9.4% | 1 | 1 | +81.7% | – | 27× |
| Keldeo-GX 240/236Unified Minds | 2019 | $23.13 | $40.00 | $450 | 122 | 271 | 45% | 1 | 2 | +26.2% | 19× | 11× |
| Keldeo-GX 219/236Unified Minds | 2019 | $12.08 | $35.00 | $285 | 116 | 290 | 40% | 2 | 3 | +3.8% | 24× | 8.1× |
| Keldeo GG07Crown Zenith Galarian Gallery | 2023 | $17.00 | $28.40 | $211 | 1,433 | 3,822 | 37% | 7 | 40 | +0.8% | 12× | 7.4× |
| Keldeo-EX 49/149Boundaries Crossed | 2012 | $1.50 | $34.00 | $210 | 198 | 464 | 43% | 3 | 6 | -3.0% | – | 6.2× |
| Keldeo ex 167/86White Flare | 2025 | $63.90 | $59.90 | $176 | 2,757 | 5,203 | 53% | 16 | 58 | -8.5% | 2.8× | 2.9× |
| Keldeo-GX 47/236Unified Minds | 2019 | $3.04 | $36.00 | $150 | 146 | 259 | 56% | 1 | 4 | 0.0% | – | 4.2× |
| Keldeo BW60BW Black Star Promos | 2011 | $2.75 | $82.50 | $90.42 | 1 | 13 | – | – | – | 0.0% | – | 1.1× |
| Keldeo V 53/202Sword & Shield | 2020 | $1.05 | $10.00 | $50.00 | 195 | 350 | 56% | 0 | 1 | -12.1% | – | 5.0× |
| Keldeo ex 159/86White Flare | 2025 | $1.29 | $19.20 | $44.00 | 459 | 675 | 68% | 2 | 11 | -6.0% | – | 2.3× |
| Keldeo ex 30/86White Flare | 2025 | $0.52 | $15.00 | $42.00 | 91 | 193 | 47% | 0 | 3 | 0.0% | – | 2.8× |
| Keldeo 48/149Boundaries Crossed | 2012 | $0.70 | $14.87 | $40.86 | 0 | 3 | – | – | – | -0.1% | – | 2.7× |
| Keldeo 19/86Chaos Rising | 2026 | $0.15 | $11.00 | $32.58 | 0 | 1 | – | – | – | – | – | 3.0× |
| Keldeo 44/162Temporal Forces | 2024 | $0.12 | $10.54 | $31.27 | 1 | 2 | – | – | – | +1.1% | – | 3.0× |
| Keldeo 46/195Silver Tempest | 2022 | $0.19 | $10.59 | $31.14 | 1 | 2 | – | – | – | +1.2% | – | 2.9× |
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 19 Keldeo cards with a PSA 10 price, with a combined PSA 10 population of 5,646. Across the 13 Keldeo cards with at least 100 PSA-graded copies, the median gem rate is 43%. PSA's sales record shows 135 Keldeo PSA 10 sales worth $64,728 in the 90 days to Oct 3, 2026, across the 14 of those cards it has sales for.
Source: UltraBall, ultraball.com/pokemon/keldeo/psa-10, observed Oct 15, 2026. Sample: every English Keldeo card UltraBall tracks (22); 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 14 of the 22 Keldeo 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.
More on Keldeo and PSA grading
- All 22 Keldeo cards with raw prices and recent sales
- The grading premium what a PSA 10 adds over raw, market-wide
- Graded supply how fast PSA populations are growing
- Grading calculator whether sending a raw Keldeo to PSA pays
Common questions
What is the most expensive Keldeo PSA 10?
Keldeo-EX 142/149 from Boundaries Crossed, at about $27,600 in PSA 10. Next is Keldeo XY118 (XY Black Star Promos) at $14,000.
How many Keldeo PSA 10s are there?
PSA has graded 5,646 Keldeo cards a 10, out of 12,825 Keldeo cards it has graded in all, across the 22 cards UltraBall tracks. Keldeo ex 167/86 (White Flare) is the most graded, at 5,203 copies.
Which Keldeo card is hardest to grade PSA 10?
Of the Keldeo cards with at least 100 copies graded, Keldeo XY118 (XY Black Star Promos) has the lowest gem rate: 3.0% of 438 came back a 10.
Which Keldeo has the lowest PSA 10 population?
Keldeo BW60 (BW Black Star Promos), with 1 PSA 10 out of 13 graded. Few copies have been sent in, so the count says more about submissions than about how hard it grades.
What is the easiest Keldeo to gem?
Keldeo ex 159/86 (White Flare): 68% of its 675 PSA-graded copies came back a 10, the highest of the Keldeo cards with at least 100 graded.
How much more is a Keldeo PSA 10 worth than a raw copy?
Across the Keldeo cards with both prices, the median PSA 10 sells for 22× the raw near-mint price. The widest gap is Keldeo XY118 (XY Black Star Promos), 702×.