Jewels made of semi-precious material were more affordable, and this affordability gave common people the chance to own costume jewelry.
In 1870, an oval shape mayoral decoration wrought from precious or semi-precious white metal was introduced.
There are also a variety of precious and semi-precious minerals that are also mined.
One of the unique approaches to paint that the company focuses on is the use of pigments derived from semi-precious minerals and other unique geological deposits.
From time to time, adult women decorated the nose pins by hanging pieces of amber and coral from strings on it; the semi-precious objects dangled down to their chins.
Both the base and casket are elaborately inlaid with precious and semiprecious gems.
Yari shafts were often decorated with inlays of metal or semiprecious materials such as brass pins, lacquer, or flakes of pearl.
Here, the inlay work is not pietra dura, but a lapidary of precious and semiprecious gemstones.
