Looking to the Enamel is looking to the history. It has been used by Ancient Greeks & Egyptians, Romans, Chinese.
Enamel is unique art of fusing metal and glass in between 750 to 850 (1,380 and 1,560 °F). The glass is powdered. The powder melts, flows, and then hardens to a smooth, durable vitreous coating.
Once it is applied, jewellery needed to be fired at a temperature high enough to melt the applied powder, but low enough that the jewellery itself was not melted.
The result is colorful magic.  
This collection is a modern interpretation of an ancient art.