At that time, diamonds had just flowed into China from the west, and ordinary families could not afford them. Their prices are very expensive. Diamonds will not depreciate because of long time, so diamond earrings were valuable in the Republic of China.

Diamond refers to polished diamond, which is a natural mineral and the original stone of diamond. Simply put, diamond is a simple crystal composed of carbon element formed under high pressure and high temperature conditions in the deep part of the earth. Diamond is the hardest natural substance known in the world at present.