This amazing piece dates from the 1st century AD - a diadem found in the Kokhlach Barrow (burial mound) in southern Russia's Rostov region. The central face is in cast glass with several precious and semi precious stones including amethyst, almandine, garnet, turquoise, pearls and coral are set or embedded in the gold. It is held in the State Hermitage Museum in St Petersburg, Russia.
From 'Attires Mind' blogspot, is this early 19th century tiara. It's beautiful, but quite solid and has a certain gravitas. The colours and symbols (wheatsheaf - harvest time; lily of the valley - often used as a symbol of the ephemeral) tell us that it may have been a tiara worn in the latter stages of mourning, when purple and white could be worn.
A pair of Georgian period earrings from c.1820, made in England. The cannetille pendant frames are gold. Similar to filigree work, cannetille utilized fine wires and narrow strips of metal to achieve the effects you see in these pieces. From 'Attires Mind' blogspot.