(1) The amounts allocated to each separate account established by the insurer pursuant to any provision of the Idaho Insurance Code (separate accounts), together with accumulations thereon may be invested and reinvested in any class of investments which may be authorized in the written contract or agreement without regard to any requirements or limitations prescribed by this chapter. The investments in such separate account or accounts shall not be taken into account in applying the investment limitations applicable to other investments of the insurer.
(2)  Except with the approval of the director and under such conditions as to investments and other matters as he may prescribe, which shall recognize the guaranteed nature of the benefits provided, reserves for (a) benefits guaranteed as to dollar amount and duration and (b) funds guaranteed as to principal amount or stated rate of interest shall not be maintained in a separate account.