Base Set 2

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

Card	Rarity	Raw	1D	30D	Trend	PSA 10
Spearow 92	Common	£0.79	-1.9%	-38.6%		£149
Energy Removal 119	Common	£0.78	+5.1%	-16.8%		£28.51
Diglett 71	Common	£0.77	-3.8%	-9.7%		£48.54
Seel 61	Uncommon	£0.76	+2.0%	-21.7%		£54.12
Kakuna 47	Uncommon	£0.75	-28.6%	0.0%		£55.54
Drowzee 73	Common	£0.74	-16.8%	-26.1%		£33.30
Voltorb 98	Common	£0.70	+3.3%	+24.0%		£105
Sandshrew 91	Common	£0.68	-8.1%	-9.0%		£43.34
Super Potion 117	Uncommon	£0.68	+11.1%	+57.9%		£14.23
Rattata 89	Common	£0.65	0.0%	-12.1%		£75.03
Poke Ball 121	Common	£0.54	-14.3%	+20.0%		£32.26
Grass Energy 127	—	£0.50	-1.5%	+67.5%		£37.52
Water Energy 130	—	£0.38	+25.0%	+25.0%		£42.35
Fighting Energy 125	—	£0.32	-2.3%	-8.5%		£23.49
Lightning Energy 128	—	£0.25	0.0%	-17.5%		£20.75
Raichu 16 Prerelease	Rare Holo	—	—	—		—

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.