Source and use: diamonds in Qing Dynasty: mainly from natural minerals, namely diamonds. Some of them were used as decorations, such as jewelry, in the Qing Dynasty. Because the diamond mining technology in Qing dynasty was relatively backward, the output was less and the quality was lower. Modern diamond: It is mined from the deep underground mainly through modern mining and processing technology. It is widely used, not only for making jewelry and decorations, but also in industrial and scientific fields, such as making cutting tools and abrasives.

Appearance color: Qing dynasty diamonds: due to low purity, the color may be dark and the fire color is not obvious. Modern diamonds: purer colors, more dazzling fire colors. The beautiful appearance of modern diamonds makes it one of the main materials of jewelry.