Georgian Baccante Lava Cameo Brooch half hoop some light wear to the

some light wear to the sapphires (only visible under magnification)

the gemstone was used by chemists to polarize light by shining rays onto a cut facet of the stone

finished with beautifully textured enamel and set with white and red paste gemstones

and set with rose cut diamonds

Georgian Baccante Lava Cameo Brooch half hoop some light wear to theDATE: Georgian, c. 1820 A cool Georgian lava cameo brooch dating from the early 19th century, circa 1820. The subject is a Baccante with characteristic ivy leaves worn in the hair (also confirmed by an inscription on the back of the cameo). Carved from a single piece of gray green Mount Vesuvius lava, it will have been brought back by a Grand Tourer to commemorate (presumably suitably hedonistic) time spent in Rome. The detail is excellent, carved in