? Before Yongzheng, the Qing Dynasty rated jewelry, the first grade was ruby, the second grade was coral, and so on, sapphire, lapis lazuli (gold essence), crystal, tortoise shell (white shell) and gold. When these things are polished, the colors are red, blue, white and gold. Before Yongzheng in Qing Dynasty, the material of beads on high hats was the same, but the cost of rubies and corals was very high. During the Yongzheng period of the Qing Dynasty, the emperor saved money and the glass manufacturing industry developed, so he ordered rubies and corals to be replaced by glass except the same color. Yes, you're right. It's glass. So it became two kinds of magenta glass, three kinds of blue glass and five kinds of white glass, seven of which were plain gold tops (containing about 75% gold). Therefore, in the future, whether the drama of Aqing Palace is strict or not depends on the beads on the head first.
After the improvement of Yongzheng, we suddenly found that it is impossible to distinguish each person's grade without looking at the imperial robe, and we can only make a rough score. So in the Qianlong period, Dingzhu made another improvement. The material did not change, but the glass was made transparent and opaque. Transparent is called bright top, opaque is called Nie top, the first is bright red top (transparent), and the second is Nie red top (opaque).