Base Set

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

Card	Rarity	Raw	1D	Since tracked	Trend	PSA 10
Magnemite 53 1999-2000	Common	£1.86	0.0%	+9.3%		£65.07
Nidorino 37	Uncommon	£1.82	+7.1%	-18.0%		£251
Kakuna 33 Shadowless	Uncommon	£1.81	-52.5%	-52.4%		£99.20
Potion 94 Shadowless	Common	£1.81	—	—		£60.02
Magmar 36	Uncommon	£1.80	-2.2%	-13.0%		£173
Machoke 34 Shadowless	Uncommon	£1.80	-53.4%	+4.0%		£190
Arcanine 23	Uncommon	£1.79	0.0%	+9.8%		£300
Abra 43 Shadowless	Common	£1.78	-56.2%	-58.2%		£227
Full Heal 82 Shadowless	Uncommon	£1.78	0.0%	-16.8%		£155
Rattata 61 1999-2000	Common	£1.78	0.0%	+0.9%		£93.44
PlusPower 84 Shadowless	Uncommon	£1.77	—	—		£102
Porygon 39	Uncommon	£1.76	+0.9%	+0.4%		£145
Energy Retrieval 81 1999-2000	Uncommon	£1.76	+17.0%	+7.8%		£69.80
Staryu 65 1999-2000	Common	£1.76	+15.2%	+14.6%		£76.53
Machop 52 1999-2000	Common	£1.75	-32.3%	-35.6%		£90.50
Switch 95 Shadowless	Common	£1.74	—	—		£64.53
Fighting Energy 97 Shadowless	—	£1.71	+3.6%	+14.6%		£40.52
Pikachu 58	Common	£1.70	-24.1%	-24.1%		£466
Voltorb 67	Common	£1.63	0.0%	+17.3%		£176
Bill 91 Shadowless	Common	£1.61	+2.5%	+2.5%		£95.51
Professor Oak 88 Shadowless	Uncommon	£1.59	+2.6%	+25.2%		£188
Fighting Energy 97 1999-2000	—	£1.56	0.0%	-26.8%		£41.29
Full Heal 82	Uncommon	£1.54	+1.3%	-38.2%		£240
Super Potion 90 1999-2000	Uncommon	£1.50	0.0%	0.0%		£162
Onix 56	Common	£1.49	+28.4%	+28.4%		£109
Bill 91	Common	£1.49	+4.9%	+7.2%		£85.05
Fire Energy 98 Shadowless	—	£1.49	0.0%	0.0%		£59.00
Tangela 66 1999-2000	Common	£1.49	-0.5%	-18.4%		£66.06
Bill 91 1999-2000	Common	£1.49	+25.2%	+17.8%		£76.53
Gust of Wind 93 1999-2000	Common	£1.49	0.0%	+1.0%		£47.47
Doduo 48 1999-2000	Common	£1.46	0.0%	-7.1%		£63.51
Diglett 47	Common	£1.45	+25.0%	+16.0%		£82.53
Energy Retrieval 81	Uncommon	£1.42	+0.7%	+0.7%		£113
Grass Energy 99 Shadowless	—	£1.39	0.0%	-3.6%		£45.77
Defender 80 1999-2000	Uncommon	£1.38	+2.8%	+2.8%		£47.15
Staryu 65	Common	£1.35	-0.7%	+0.7%		£74.05
Weedle 69	Common	£1.35	-4.9%	+18.4%		£103
Lightning Energy 100 Shadowless	—	£1.34	-9.1%	-12.7%		£81.17
Charmander 46	Common	£1.33	-30.0%	+14.7%		£269
Ponyta 60	Common	£1.31	+4.8%	-5.1%		£113
Magikarp 35	Uncommon	£1.30	-81.3%	-3.0%		£300
Energy Removal 92	Common	£1.30	0.0%	0.0%		£67.92
Rattata 61	Common	£1.25	0.0%	+5.9%		£82.16
Raticate 40	Uncommon	£1.20	-33.3%	-26.8%		£138
Potion 94	Common	£1.20	-2.4%	-6.3%		£73.15
Grass Energy 99	—	£1.19	+1.7%	+20.2%		£79.53
Lightning Energy 100	—	£1.19	+2.6%	+2.6%		£77.15
Caterpie 45	Common	£1.18	+0.9%	0.0%		£90.25
Charmeleon 24	Uncommon	£1.17	0.0%	-3.3%		£194
Farfetch'd 27	Uncommon	£1.17	0.0%	0.0%		£151
Haunter 29	Uncommon	£1.17	0.0%	-0.8%		£212
Jynx 31	Uncommon	£1.17	0.0%	+0.9%		£111
Kadabra 32	Uncommon	£1.17	-8.6%	-15.2%		£189
Kakuna 33	Uncommon	£1.17	+0.9%	+0.9%		£73.06
Poliwhirl 38	Uncommon	£1.17	0.0%	0.0%		£133
Seel 41	Uncommon	£1.17	0.0%	0.0%		£77.32
Abra 43	Common	£1.17	0.0%	-7.1%		£139
Bulbasaur 44	Common	£1.17	0.0%	-13.3%		£269
Koffing 51	Common	£1.17	+0.9%	+0.9%		£97.53
Tangela 66	Common	£1.17	+0.9%	-9.3%		£90.04

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.