Base Set

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

Card	Rarity	Raw	1D	30D	Trend	PSA 10
Gastly 50	Common	£0.79	-26.7%	-21.3%		£151
Magnemite 53	Common	£0.78	-20.9%	-19.7%		£67.10
Metapod 54	Common	£0.78	-9.4%	-37.3%		£63.89
Vulpix 68	Common	£0.75	-1.0%	-36.3%		£92.33
Koffing 51	Common	£0.74	-14.5%	-49.7%		£89.58
Nidoran 55	Common	£0.74	-8.3%	-16.0%		£49.34
Staryu 65	Common	£0.74	-15.3%	-24.2%		£56.13
Weedle 69	Common	£0.74	0.0%	-32.4%		£74.42
PlusPower 84	Uncommon	£0.73	0.0%	-20.8%		£65.68
Switch 95	Common	£0.73	-1.0%	-42.1%		£62.77
Super Potion 90	Uncommon	£0.69	-6.0%	-42.3%		£50.22
Gust of Wind 93	Common	£0.68	+13.6%	-34.3%		£48.08
Lightning Energy 100	—	£0.65	0.0%	+3.5%		£56.13
Machop 52	Common	£0.64	-7.4%	-42.0%		£68.17
Bill 91	Common	£0.61	0.0%	-38.5%		£65.00
Pokedex 87	Uncommon	£0.57	-23.0%	-55.0%		£94.47
Ponyta 60	Common	£0.55	0.0%	-38.5%		£103
Psychic Energy 101	—	£0.55	0.0%	-13.8%		£60.79
Fighting Energy 97	—	£0.54	-19.8%	-26.3%		£65.75
Fire Energy 98	—	£0.52	-15.7%	-29.3%		£62.41
Water Energy 102	—	£0.50	0.0%	-11.7%		£69.99
Potion 94	Common	£0.44	-22.1%	-58.0%		£55.39
Grass Energy 99	—	£0.35	-6.0%	-50.5%		£75.71
Wartortle 42 Trainer Deck B	Uncommon	—	—	—		£879
Switch 95 Trainer Deck B	Common	—	—	—		—
Machoke 34 Trainer Deck A	Uncommon	—	—	—		—
Raticate 40 Trainer Deck A	Uncommon	—	—	—		£339
PB10 Pack Blister Costco	—	—	—	—		—
RRaichu 14 Prerelease	—	—	—	—		—

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.