1. Compared with silver, copper, gold and platinum, the jade ring is inlaid with 18k gold. Because 18k gold is more valuable and there are many recycling channels; But also more conformal, and is not easy to wear or deform; While 18K gold has strong plasticity; There are also more colorful ones; 18K gold mosaic effect is not much better than platinum, and it has to be said that it is a cost-effective model.

2. 18K gold has great advantages over gold and platinum in price. Because pure gold is soft, it can't firmly fix gems. Through people's practice, it is found that the ductility, oxidation resistance and plasticity of gold inlaid with 75% gold (that is, 18k gold) have reached the best balance, so it has become the first choice for jewelry processing.