The 990 represents the purity of 99.0%, which cannot indicate any metal variety. my country stipulates that precious metal ornaments such as gold and silver need to marked ingredients and color on the surface. Therefore, when the purity of gold is 990, the surface will be marked on the surface. For example: When the purity of silver is 990, the surface will be marked with "S990", "AG990", "Silver 990" and other marks. Essence The purity of platinum is 99.0%, and the surface generally includes "platinum 990" and "PT990". Platinum with platinum content is a very splendid silver white. The expansion information: . Foot gold 990 1, refers to foot gold, its gold content is more than 99.0%. The characteristics of strong sex and stable nature are one of the main raw materials for making gold jewelry. 2, my country stipulates that the surface of precious metal materials such as gold and silver needs to be marked with composition and color. Therefore, the surface of the accessories of the gold 990 materials generally includes "G990", "AU990", "Gold 990" and other imprints. The gold on the market is mainly divided into foot gold and K gold. Among them, K gold refers to the alloy made of gold and other metals melted by gold, such as common 18K gold and 20k gold, which represent 75%and 83.3%of the gold content. . The alloy 750 1, 750 refers to a alloy, which is 75%of the gold content of this alloy. It is 75%gold and 25%copper, silver, nickel, zinc and other metals Formed, the commonly known 18K gold refers to the alloy with a gold content of 75%. 2, 750 is a kind of metal with a low cost and more comfortable wearing. This metal is often used to make various jewelry. Wait multiple advantages. The color of 3, 750 is very rich. When the mixed 25%is different metal, different colors can be presented. For example, the blue 750 is a 75%gold and iron composition, the black 750 is a 75%gold and thick iron, and the purple 750 is a 75%gold and lead. three, 990 gold, and 999 gold are the main differences 1, the difference between the recovery price of the two n The gold recovery price is calculated according to sufficient gold, so whether it is foot gold, foot gold 999, foot gold, foot gold 9999, or five or nine gold, their recovery prices are the same. 2, the difference between the gold content of the two The gold content according to the requirements of the new national standard is more than 99%, which is called sufficient gold, 999 gold is 99.9%, and 990 gold is 99.0%, so the gold content of the two The difference is not much. 3, the difference between the price of the two In fact, there is not much difference in essence. Some merchants like to use purity to talk about things, and consumers believe that the higher the purity, the more expensive the price, and the merchants will earn profits. For example, the price of the 990 -foot gold of Caifu is 398 kg, and the price of the Football 999 is 408 grams. Liufu Jewelery 990 gold price is 452 grams, and 999 gold prices are 453 grams. Shanghai Old Temple Gold 990 Gold 447.5 grams, 999 gold price 448 grams. From the above examples, it can be seen that their prices are not much different.
990 is a metal with a purity 990, and the gold content is not less than 99.0%. AU99.0 is a gold with a purity 990, PT99.0 is a platinum with a purity 990, and PD99.0 is a pupa gold with a purity 990. It is only known that the purity cannot be judged what kind of metal is, and it must be judged based on the elements or English name before the purity.
The 990 represents the purity of 99.0%, which cannot indicate any metal variety. my country stipulates that precious metal ornaments such as gold and silver need to marked ingredients and color on the surface. Therefore, when the purity of gold is 990, the surface will be marked on the surface. For example: When the purity of silver is 990, the surface will be marked with "S990", "AG990", "Silver 990" and other marks. Essence The purity of platinum is 99.0%, and the surface generally includes "platinum 990" and "PT990". Platinum with platinum content is a very splendid silver white.
The expansion information:
. Foot gold 990
1, refers to foot gold, its gold content is more than 99.0%. The characteristics of strong sex and stable nature are one of the main raw materials for making gold jewelry.
2, my country stipulates that the surface of precious metal materials such as gold and silver needs to be marked with composition and color. Therefore, the surface of the accessories of the gold 990 materials generally includes "G990", "AU990", "Gold 990" and other imprints. The gold on the market is mainly divided into foot gold and K gold. Among them, K gold refers to the alloy made of gold and other metals melted by gold, such as common 18K gold and 20k gold, which represent 75%and 83.3%of the gold content.
. The alloy 750
1, 750 refers to a alloy, which is 75%of the gold content of this alloy. It is 75%gold and 25%copper, silver, nickel, zinc and other metals Formed, the commonly known 18K gold refers to the alloy with a gold content of 75%.
2, 750 is a kind of metal with a low cost and more comfortable wearing. This metal is often used to make various jewelry. Wait multiple advantages. The color of
3, 750 is very rich. When the mixed 25%is different metal, different colors can be presented. For example, the blue 750 is a 75%gold and iron composition, the black 750 is a 75%gold and thick iron, and the purple 750 is a 75%gold and lead.
three, 990 gold, and 999 gold are the main differences
1, the difference between the recovery price of the two n The gold recovery price is calculated according to sufficient gold, so whether it is foot gold, foot gold 999, foot gold, foot gold 9999, or five or nine gold, their recovery prices are the same.
2, the difference between the gold content of the two
The gold content according to the requirements of the new national standard is more than 99%, which is called sufficient gold, 999 gold is 99.9%, and 990 gold is 99.0%, so the gold content of the two The difference is not much.
3, the difference between the price of the two
In fact, there is not much difference in essence. Some merchants like to use purity to talk about things, and consumers believe that the higher the purity, the more expensive the price, and the merchants will earn profits. For example, the price of the 990 -foot gold of Caifu is 398 kg, and the price of the Football 999 is 408 grams. Liufu Jewelery 990 gold price is 452 grams, and 999 gold prices are 453 grams. Shanghai Old Temple Gold 990 Gold 447.5 grams, 999 gold price 448 grams. From the above examples, it can be seen that their prices are not much different.
990 is a metal with a purity 990, and the gold content is not less than 99.0%. AU99.0 is a gold with a purity 990, PT99.0 is a platinum with a purity 990, and PD99.0 is a pupa gold with a purity 990. It is only known that the purity cannot be judged what kind of metal is, and it must be judged based on the elements or English name before the purity.
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