Coated tool and cutting tool

A coated tool comprising:

• a base body, and a coating layer located on the base body, wherein
• the coating layer comprises crystals having a cubic structure,
• the coating layer has a striped structure in cross-sectional observation by a transmission electron microscope,
• the striped structure has two layers alternately located in a thickness direction,
• the two layers
• contain Si and at least one metal element,
• are different from each other in terms of a content of the metal element, and
• contain crystals having the cubic structure, respectively, and
• when a lattice constant of a crystal having the cubic structure in one layer of the two layers is referred to as a first lattice constant and a lattice constant of a crystal having the cubic structure in the other layer of the two layers is referred to as a second lattice constant, a difference between a magnitude of the first lattice constant and a magnitude of the second lattice constant is greater than 0% and 0.1% or less.