Georgian Baccante Lava Cameo Brooch half hoop the gemstone was used by

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

features a chased clover motif to the back

brooch fitting has possibly been upgraded at some stage

between 1813 and 1815

Georgian Baccante Lava Cameo Brooch half hoop the gemstone was used byDATE: 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