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                                             As filed pursuant to Rule 424(b)(3)
                                             under the Securities Act of 1933
                                             Registration No. 33-87864


                     ANCHOR NATIONAL LIFE INSURANCE COMPANY

                            VARIABLE SEPARATE ACCOUNT
        (PORTION RELATING TO THE DIVERSIFIED STRATEGIES VARIABLE ANNUITY)

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                SUPPLEMENT TO THE PROSPECTUS DATED JULY 9, 2001

On page 25 of the Prospectus, in the second full paragraph from the top of the
page, the second sentence of the paragraph is replaced with the following:

Thus, your beneficiaries may receive no benefit from your election of the
Earnings Advantage Benefit if you live past your latest Annuity Date.

Date: August 3, 2001


                Please keep this Supplement with your Prospectus.