999 gold refers to gold with a purity greater than or equal to 99.9%, commonly known as "Sanjiu gold" or "Qianzujin", with marks such as "999 gold" or "G999". The advantages of Qianzujin are small size, large weight, and high purity. The disadvantages are high price, low hardness, easy wear and tear, scratch, deformation, and difficulty in making complex shapes.
1. 999 gold is a thousand foot gold
999 gold refers to gold with a gold content of ≥ 99.9%, commonly known as "thousand foot gold". Thousand foot gold is the highest value in naming the purity of jewelry.
However, according to regulations, the new national standard GB11887-2012 officially came into effect on May 4, 2016, and the words "thousand foot gold" cannot appear on seals and jewelry labels, which are uniformly marked as "foot gold".
When making jewelry from precious metals of different materials or purities, it is generally necessary to label them. Common markings for 999 gold include "999 gold", "G999", "gold999", etc. If the gold jewelry is too thin or too small to print the mark, it should be accompanied by a label containing the imprint content.
2. Advantages and disadvantages of 999 gold
Advantages of 999 gold: The biggest advantage of a thousand foot gold is that it provides investment opportunities for everyone, and its value is always there. Foot gold is the most valuable and collectible.
Disadvantages of 999 gold: Gold is an extremely soft metal, and the hardness of pure gold jewelry is very low. Ordinary pure gold jewelry is prone to scratches and deformation if not taken care of, making maintenance inconvenient (for example, pure gold may deform when it falls off the hand).