Pure gold literally refers to gold with full color, and purity refers to gold with a gold content of not less than 99%, which is two 9s. There are three kinds of pure gold: 990, 999 and 9999. Except that 990,999 refers to thousands of gold with a gold content of 99.9%, 9999 refers to thousands of gold with a gold content of 99.99%.
Strictly speaking, pure gold covers a wide range:
As long as the gold content is above 99%, it is collectively called pure gold, so pure gold has become the highest value of jewelry color naming in the national standard. Pure gold is very soft because of its high gold content, and its color is close to red and yellow. Good value-added and value-preserved, suitable for investment.
Pure gold has a high gold content and is not easy to form. The design is very simple and simple, but it also highlights the generosity and elegance of gold. Therefore, wearing pure gold can make people look more reserved. When choosing pure gold, we should pay attention to the mark, color, weight and sound, so as to judge whether the fineness of pure gold is really that good.