Base Set

Highest value first. Raw = ungraded, near mint. A dash means no second reading yet.

Card	Rarity	Raw	1D	30D	Trend	PSA 10
Ivysaur 30 1st Edition	Uncommon	£56.61	-10.8%	-9.8%		£1,771
Wartortle 42 1st Edition	Uncommon	£55.84	0.0%	-6.8%		£6,764
Pidgeotto 22 1st Edition	Rare	£53.59	-1.1%	-16.2%		£1,178
Defender 80 Trainer Deck A	Uncommon	£52.44	0.0%	0.0%		—
Potion 94 Trainer Deck A	Common	£51.29	0.0%	0.0%		—
Mewtwo 10 Shadowless	Rare Holo	£50.31	-0.8%	-19.7%		£9,708
Venusaur 15	Rare Holo	£49.67	-3.9%	-15.9%		£2,614
Raichu 14 Shadowless	Rare Holo	£48.93	-8.7%	-15.2%		£2,894
Poliwrath 13 Shadowless	Rare Holo	£48.60	+13.4%	+25.4%		£4,062
Clefairy 5 1999-2000	Rare Holo	£47.68	+92.6%	+92.6%		—
Chansey 3 1999-2000	Rare Holo	£46.94	-7.6%	-14.8%		—
Venusaur 15 1999-2000	Rare Holo	£45.79	0.0%	-17.3%		£14,403
Switch 95 Trainer Deck A	Common	£45.05	0.0%	0.0%		—
Growlithe 28 1st Edition	Uncommon	£44.70	+9.7%	+1.0%		£2,299
Scoop Up 78 1st Edition	Rare	£44.21	+4.3%	+19.7%		£628
Item Finder 74 1st Edition	Rare	£43.32	0.0%	0.0%		£853
Nidoking 11 Shadowless	Rare Holo	£42.69	-13.3%	+1.4%		£2,881
Pokemon Trader 77 1st Edition	Rare	£42.59	+0.6%	+15.3%		£829
Fighting Energy 97 Trainer Deck A	—	£42.38	0.0%	0.0%		£206
Dratini 26 1st Edition	Uncommon	£41.75	0.0%	+5.4%		£1,883
Zapdos 16 Shadowless	Rare Holo	£41.73	-1.4%	+13.0%		£2,478
Electrode 21 1st Edition	Rare	£39.63	+7.3%	+24.8%		£1,187
Haunter 29 1st Edition	Uncommon	£38.78	0.0%	-8.8%		£1,087
Kadabra 32 1st Edition	Uncommon	£37.57	0.0%	+8.2%		£2,425
Imposter Professor Oak 73 1st Edition	Rare	£36.91	0.0%	+17.6%		£697
Clefairy Doll 70 1st Edition	Rare	£35.08	+2.7%	-0.7%		£919
Chansey 3 Shadowless	Rare Holo	£34.71	0.0%	-18.2%		£2,404
Pikachu 58 Shadowless Red Cheeks	Common	£34.22	-15.1%	+15.8%		£2,231
Machamp 8 Trainer Deck A	Rare Holo	£33.84	0.0%	+52.7%		—
Ninetales 12 Black Flame	Rare Holo	£32.50	-0.1%	-2.2%		—
Ninetales 12 Shadowless	Rare Holo	£31.77	0.0%	+18.5%		£1,512
Weedle 69 1st Edition	Common	£31.41	0.0%	+4.8%		£514
Machoke 34 1st Edition	Uncommon	£30.50	-1.1%	+2.3%		£848
Jynx 31 1st Edition	Uncommon	£29.79	+0.6%	+7.8%		£979
Caterpie 45 1st Edition	Common	£29.78	-0.8%	+3.6%		£733
Gyarados 6 Shadowless	Rare Holo	£29.36	-7.0%	-34.1%		£3,932
Clefairy 5 Shadowless	Rare Holo	£28.70	+1.1%	-17.9%		£3,795
Alakazam 1	Rare Holo	£27.97	+18.5%	+22.6%		£1,976
Alakazam 1 1999-2000	Rare Holo	£27.59	-1.7%	-22.9%		—
Mewtwo 10	Rare Holo	£27.33	+98.7%	+36.3%		£3,102
Gastly 50 1st Edition	Common	£27.08	-6.9%	-3.3%		£595
Magneton 9 Shadowless	Rare Holo	£26.77	-2.7%	+15.6%		£1,766
Water Energy 102 Trainer Deck B	—	£26.43	+104.5%	+104.5%		£144
Abra 43 1st Edition	Common	£26.08	+6.4%	+6.1%		£544
Farfetch'd 27 1st Edition	Uncommon	£25.39	-0.1%	+11.0%		£842
Pokemon Breeder 76 1st Edition	Rare	£25.11	0.0%	+5.7%		£902
Raichu 14	Rare Holo	£24.37	+3.9%	+1.8%		£2,360
Vulpix 68 1st Edition	Common	£23.70	-1.4%	+18.9%		£534
Poliwhirl 38 1st Edition	Uncommon	£23.48	0.0%	+6.0%		£879
Starmie 64 1st Edition	Common	£23.12	-2.2%	+11.3%		£646
Pikachu 58 E3	Common	£22.94	-3.1%	+13.5%		£456
Energy Retrieval 81 1st Edition	Uncommon	£21.97	0.0%	+55.0%		£238
Devolution Spray 72 1st Edition	Rare	£21.94	0.0%	+13.2%		£742
Magmar 36 1st Edition	Uncommon	£21.91	-1.1%	+48.4%		£764
Professor Oak 88 1st Edition	Uncommon	£21.75	-10.7%	-13.4%		£1,184
Poliwag 59 1st Edition	Common	£20.67	0.0%	+35.0%		£436
Raichu 14 1999-2000	Rare Holo	£19.23	-0.3%	-13.6%		—
Rattata 61 1st Edition	Common	£19.14	+10.3%	+29.9%		£368
Porygon 39 1st Edition	Uncommon	£18.71	-7.9%	-2.3%		£892
Koffing 51 1st Edition	Common	£18.58	+0.3%	0.0%		£431

Which rarities carry this set's value. Share is the tier's raw cards as a fraction of the whole set. The PSA 10 premium is the median multiple over raw within the tier — cards under £5 raw are excluded from it, and a tier with fewer than three qualifying cards shows no premium rather than a misleading one.