Donors to the State Department's Fine Arts. Fund came from all over the United States last night to the diplomatic reception room which they had helped furnish. They ate clams and beefsteak tartare. They admired each other's gifts of Chippendale and Hepplewhite furniture. And they cheered when Clement Conger, chairman of the fund, announced donations last year amounted to 963,000, more than $100,000 higher than the previous year.

The money buys rare American furniture and art objects and pays for the interior decoration of the rooms used for formal State Department entertainment.

The guests admired the just-finished $25,000 remodeled [WORD ILLEGIBLE] lobby and entrance hall, Edward Vason Jones, an Albany, Ga., architect who has designed all of the architectural embellishments, was honored with a citation. Chief Justice Warren Burger made the presentation acting for Secretary of State Cyrus Vance who is in the Middle East.

Among the new large gifts, marked last night with a ribbon, were a Chippendale breakfront given by Arthur Liebman of Glenview, Ill., and a bombe-front desk given by Mr. and Mrs. Joseph Hennage of Chevy Chase, Md. CAPTION: Picture, Chief Justice Warren Burger, left, and Edward Vason Jones, by Linda Wheeler