The cross is 2 1/2 “ long by 2 2 1/4” wide. Hand cut green black red glass. There is 20.63 gram wt. The diamond cut 24” sterling chain The three colors have a representation of Mexico. What does the color green symbolize in Mexico? Mexico's color palette is a mix of historical associations and the environment's deeply toned offerings. The colors of the Mexican flag are all symbolic: green represents independence or hope. The color black is used on the altars to represent the Land of the Dead. The Prehispanic religions are also represented by this color. It is used more as a background color and is not usually as prevalent as the other colors on the altars or on decorations. Red, as seen on the state's flag, represent the Spanish colony and territorial phases of the Santa Fe de Nuevo México. The Sun Face has been a symbol of life, time, and goodness What does the cross represent in Mexico? And so it is in the life of a faithful Mexican. The Sign of the Cross.