The upper cup of the relic known as the Holy Chalice of Valencia is made of agate.
The Holy Chalice kept in Valencia Cathedral is traditionally identified by some Christians as the cup used at the Last Supper. Its upper vessel is a polished reddish-brown agate cup, while the complete object includes later additions, including a stem and ornate base. The cathedral presents the relic for veneration, but its historical identification remains a matter of religious tradition rather than universally proven fact.
The chalice’s documented history in Spain becomes clearer in the medieval period. Tradition connects it with the monastery of San Juan de la Peña before it was transferred to Valencia in the fifteenth century.
The agate cup is sometimes confused with the decorative metalwork surrounding it or with other relics claimed as the Grail. “Holy Chalice” and “Holy Grail” are related labels here, but the relic’s authenticity is not established by the material alone.