The Shield of the State of Guanajuato, which originally belonged to the city of the same name, was created by King Carlos I of Spain.

The composition of the Shield is as follows: It rests on a mantel depicting being of colored marble trimmed with gold.

At the base there is a shell supported by two laurel branches that they are joined by a blue ribbon.

The shell that links the shield symbolizes the stability of the home, widening its borders.

The background with a field of gold means nobility, magnanimity and purity of feelings, and at the same time, the richness of metals precious that are in the entity.