deeply carved 3-dimensional portrait of a female with grapes all around, 14K yellow gold, unmarked, tested and guaranteed, oval, 1 5/8" X 1 1/4", 19th century, excellent.......Cameos made of coloured limestone were popular souvenirs of a trip to the south of Italy in the 19th century. The material was considered to be the "lava" of Mount Vesuvius and was a reminder of the sinking of Pompeii in 79 AD when the city sank under lava and ash from this volcano.