A clay-like composition for forming a sintered precious metal body, the clay-like composition containing at least one powder selected from the group consisting of precious metal powders and precious metal alloy powders, an organic binder, an organic additive and water, wherein the clay-like composition has an initial hardness measured using a type E durometer of E8 to E20, and has a hardness after standing for one hour at room temperature of E40 or less.