To provide an alloy in which the glass formability is excellent, the compatibility with a living body is improved; and to provide especially an alloy that does not emit nickel even if contacting with a body fluid.

The alloy includes an amorphous phase and is shown by general formula [Zr_x(Fe_100-x)_a(Al_yG_100-y)_100-a]_100-bZ_b. In the formula, a, b, x, and y are a real number indicating an atomic percent; 70≤a≤90, x≥50, y>0, 0≤b≤6 are satisfied; G denotes at least one element chosen from the group consisting of platinum and palladium; Z is a component comprising at least one element; and all component of G and Z are each different and are not zirconium, iron, and aluminum; and the alloy does not substantially includes copper and nickel.