Signet ring of the “Black Prince”
Second third of 14th century
Found at Montpensier, Puy-de-Dôme, in 1866
Gold, formerly gilded, ruby
Techniques: Gilding
The term gilding covers a number of decorative techniques for applying fine gold leaf or powder to solid surfaces such as wood, stone, or metal to give a thin coating of gold. A gilded object is described as "gilt". Where metal is gilded, it was traditionally silver in the West, to make silver-gilt (or "vermeil") objects... [Wikipedia]