wholesale silver chains jewelry Is 925 a sterling silver 950? Is it pure gold?

wholesale jewelry fashion china 925 indicates that the silver content of jewelry is 925%, and the silver content is 925%. Not called sterling silver, generally called "standard silver" or "925 silver". 925 silver is the most commonly used material for silver jewelry; silver with 990%of the content is called "foot silver"; the content is 999! The silver is silver. Silver silver is used in special occasions, such as the reserves of the People's Bank of China, raw materials for coin -making.nAs the saying goes, "Gold is not red", generally gold jewelry contains other metals with less than 1%. Regarding the color content of gold products, the national standards have clear regulations, that is, each gold jewelry sold by merchants must be listed to indicate its gold content and weight. The weight of the gold jewelry is all used in the national statutory unit. Its gold content should use "K gold" (excluding 24K gold), "foot gold" (not less than 99%), "thousands of gold" (not less than 99.9%). Pure gold "" 24K gold, "9999" and other irregular standard methods that actually do not exist. One of the characteristics of gold is soft, so it is difficult to inlaid all kinds of exquisite styles, especially when it is inlaid with treasures such as pearls, gems and emeralds. Therefore, people add a small amount of silver, copper, zinc and other metals to gold to increase the strength and toughness of gold. The gold jewelry made, also known as K gold. K gold can be prepared as a variety of colors as needed. The popular K gold jewelry internationally has all kinds of colors, and everyone is common in yellow and white. Mixing 25%of 入 or nickel in gold will become white, which is the main ingredient of it is gold. This is called white K gold. As far as the current level of science and technology is concerned, it is impossible to refine pure gold materials with a purity of 100%. Therefore, the golden position standard K in the gold content in the gold products generally refers to the pure gold as 24K gold, but it is theoretically gold with 100%gold, which actually does not exist. Therefore, in the national standard, the gold content of the merchants that the gold jewelry must not use the irregular standards of "24K gold". Since the pure gold is 24K, that is, the theoretical gold content is 100%, then 1K means that gold products contain pure gold 1/24, about 4.16%. 18K gold represents the gold content of 18/24, which is 75%of pure gold, and the rest are other materials such as silver or copper. As the saying goes, "Gold is not red", generally gold jewelry contains other metals with less than 1%. Regarding the color content of gold products, the national standards have clear regulations, that is, each gold jewelry sold by merchants must be listed to indicate its gold content and weight. The weight of the gold jewelry is all used in the national statutory unit. Its gold content should use "K gold" (excluding 24K gold), "foot gold" (not less than 99%), "thousands of gold" (not less than 99.9%). Pure gold "" 24K gold, "9999" and other irregular standard methods that actually do not exist. Its gold content should use "K gold" (excluding 24K gold), foot gold (not less than 99 %), thousands of gold (not less than 99.9 %), shall not use "Thousands of Pure Gold", "Pure Gold", and "Pure Gold" and and In fact, the "24K gold" and the irregular standard methods