Isaiah the Prophet's Seal Recreation necklace. This is a resin cast recreation of the seal. The seal says, “Belonging to Isaiah the prophet”. It was unearthed at the Ophel excavation site in Jerusalem. Eliat Mazar is the head of this excavation. The seal is on a 26 inch cord. Usually the seal was worn around the neck. The seal shows ownership. The seal was pressed into the clay. The clay impression is called a bulla. This is an amazing discovery.