Essential knowledge of precious metal jewelry Regular precious metal jewellery will be marked with the mark according to the stipulation and naming method of jewellery precious metal purity GB/T11887-2000, including the manufacturer code, material purity and the main stone quality of diamond jewellery. In the jewelry imprint, you can often see "G999", "Foot Gold", "Full Silver", "Platinum 950", etc. Understanding the meaning of these imprints is essential for the purchase of precious metal jewelry. Gold jewelry In the jewellery mark, the ingredients are indicated by the words "Gold", "G" and "Au", and the contents of the ingredients are indicated by numbers such as "999" and "990". Thousands of gold, gold with a gold content of not less than 99.9%, is the highest value in the naming of jewelry. The mark on the jewelry is “Thousands of Goldâ€, “Gold 999â€, “G999†and “Au999†(Au is the symbol of gold). Thousands of golden golden color, stable in nature, but soft in texture, easy to break, easy to wear, easy to deform. Gold, gold with a gold content of not less than 99%, the mark on the jewelry is "foot gold", "gold 990", "G990" and "Au990". The gold content of the gold is also high, and it is very close to the thousand gold in color and nature. Gold alloys, commonly referred to as K gold , add some other metal elements to the gold to increase the hardness of the jewelry, change its color tone and lower its melting point. According to the purity standard of K gold, K gold can be divided into 1K to 24K, the gold content of 1K gold is (1000/24) ‰, and the gold content of 24K gold is 100%. In 18K gold, the gold content is 75%, and the rest is silver, copper, etc., wherein the proportion of silver is blue-yellow when the proportion of silver is high, and the yellow color is yellow when the proportion of copper is high. The mark is “Gold 750â€, “G18K†and “Au750â€. 18K gold is moderate in hardness and ideal in ductility. It is suitable for inlaying various kinds of gemstones. The finished product is not easy to be deformed, the edges are not sharp and not broken, and the peaks are less. 14K gold, containing 58.5% gold, the rest is silver, copper, etc., the color is mainly dark yellow, with red light, hard texture, high toughness, can be set with various gems, imprinted as "Gold 585" "G14K" "Au585 ". Color K gold is abbreviated as color gold, including red, orange, yellow, green, blue, enamel, purple, white, gray, black and other colors, because the different elements of the injected elements show different colors. Silver jewelry In the jewellery mark, the ingredients are indicated by the words "silver", "S" and "Ag", and the contents of the ingredients are indicated by numbers such as "990" and "925". Foot silver, the silver content is not less than 99%, the mark is "foot silver", the texture is soft, in order to increase the hardness, often add the appropriate amount of copper in the silver. 925 silver, containing no less than 92.5% of silver, imprinted as "silver 925", "S925" and "Ag925" (Ag is an element symbol of silver). 800 silver, containing no less than 80% of silver, imprinted as "Silver 800", "S800" and "Ag800". Platinum jewelry In the jewelry imprint, the components are represented by the words "platinum" and "PT", and the components are represented by numbers such as "990" and "950". Foot platinum, platinum content not less than 99%, imprinted as "foot platinum" "PT990" "platinum 990". 950 platinum, containing platinum of not less than 95%, imprinted as "platinum 950" "PT950". 900 platinum, the platinum content is not less than 90%, wherein the total content of palladium and platinum is not less than 95%, and the mark is "platinum 900" "PT900". 900 platinum has a moderate hardness and occupies a large proportion in jewelry, especially inlaid jewelry, which is firm and not easy to fall off, and has a good appearance. 850 platinum, containing platinum of not less than 85%, imprinted as "platinum 850" "PT850". Neoprene Bell Boots,Neoprene Splint Boots,Neoprene Overreach Boots,Horse Neoprene Bell Boot Suixian Zhongyu Electronic Business Co., Ltd. , https://www.ausheepskin.com(6).jpg)
.jpg)
(3).jpg)
(6).jpg)
Essential knowledge of precious metal jewelry