The oldest known natural pearl in the world has been discovered by Department of Culture and Tourism - Abu Dhabi (DCT Abu Dhabi) archaeologists working at a Neolithic site on Marawah Island, just off the coast of the Capital. Dubbed the 'Abu Dhabi Pearl', it was found in layers carbon dated to 5800-5600 BCE, during the Neolithic period. The discovery is proof that pearls and oysters were used in the ...