Bulbasaur
CGC10English is 85% cheaper (save $283)
The same printing at the same grade, priced in each language. Cards are matched by set and card number, so a special art only ever sits next to a special art. Japanese prints often trade well below their English twins, and sometimes the other way round.
English is 85% cheaper (save $283)
English is 77% cheaper (save $76.91)
English is 76% cheaper (save $76.25)
English is 70% cheaper (save $349)
English is 64% cheaper (save $96.03)
English is 52% cheaper (save $52)
English is 49% cheaper (save $53)
English is 40% cheaper (save $199)
English is 30% cheaper (save $30)
English is 20% cheaper (save $20)
English is 12% cheaper (save $20)
Matched by card name, grade and release year, so check both sets before buying. Prices are current lowest asks, not sales.