The fees are set out in Article 46 and Annex 2 of the Ordinance on Identity Documents for Swiss Nationals (SR 143.116). These are payable in the currency determined by the Swiss representation.

Amount in EUR (including postage)
  Identity card Passport Combined offer (passport and ID card) Provisional passport Laissez-passer
Children and adolescents up to the age of 18 39.00 69.00 86.00 100.00 40.00
Adults 74.00 149.00 166.00 100.00 40.00

The passport and the ID card are posted separately (different places of production)

*These delivery fees are for forwarding from the place of production in Switzerland to the Swiss representation abroad or to the holder of the identity document abroad.