This cross of rare beauty combines the use of jasper and silver. The magnificent hexagonal knot is to become a model for the decoration of Portuguese chalices and other pieces of precious metalwork until the mid 15th century. The use of pilasters around the base foresees the future domination of micro-architecture. The images chosen conform to the Christian catechism: the crucifix on one side, Christ on the other surrounded by the symbols of the four Evangelists, the Tetramorph.