Quantity prices:

100 = £37.54

250 = £47.61

500 = £64.94

750 = £81.72

1000 = £98.51

This is for a gloss outside, matte inside, folded card at a nice thick 400gsm.

This is the least expensive company I found for these options (many don't offer gloss outside, matte inside, or were folded on the wrong side anyway). Price for 500 ranged from £65 - £100+ pounds, so this is a decent deal for 500.

-C