wholesale high quality jewelry china
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wholesale high quality jewelry china
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wholesale fashion jewelry accessories new york Based on the latest gold T D of the Shanghai Gold Exchange, the quotation is 398.07 yuan/gram;
, then 100 million yuan can buy 251212.1 grams of gold.
sterling silver fashion jewelry wholesale Based on the latest gold T D of the Shanghai Gold Exchange, the quotation is 398.07 yuan/gram;
, then 100 million yuan can buy 251212.1 grams of gold.
In how to choose gold
The color: the higher the purity of the gold jewelry, the deeper the color. If there is no gold medal, you can determine the general color according to the following color (based on green gold. The so-called green gold contains only silver ingredients in gold); dark red yellow color is more than 95 %, light red yellow 90-95 % The pale yellow is 80-85 %, the cyan is 65-70 %, and the white light is only 50--60 % white light. The slightly yellow and white are less than 50 %. Generally, Qiqing, Eight Huang, and Jiu Chi can be used as a reference. Type weight: The proportion of gold is 19.32, which is more important than metal such as silver, copper, lead, zinc, aluminum. The volume of gold is more than 40 % heavier than the silver, 1.2 times heavier than copper, and 6.1 times heavier than aluminum. The gold jewelry should have a feeling of sinking in the hand, and the fake gold jewelry feels lightly. This method is not suitable for gold jewelry inlaid.
Itt the hardness of the hardness: pure gold is soft and low. It can draw light marks with nails. Teeth bite can leave tooth marks. High -colored gold jewelry is low in color. Hard, bending method can also test hardness, pure gold is soft, easy to bend, the lower the purity, the less likely to bend.
extension data
The main units of measured gold weight are: ounces, grams, kg (kg), tons, etc. The general -purpose golden measurement unit internationally is ode. The world's gold prices we often see are based on ounces as the valuation unit, 1 ounce = 31.103481 grams.
Due to the different calculation methods, the conversion of pounds and grams has also been different in different dynasties. During the Qin and Western Han Dynasty, a pound was equivalent to 258.24 grams, and one or two equal to 16.14 grams. Wang Mang, Eastern Han Dynasty, Wei, Jin, and Northern and Southern Dynasties, a pound was equivalent to 222.73 grams, and one or two equal to 13.92 grams.
The early years of the Sui Dynasty, a pound was equivalent to 668.19 grams, and one or two was equal to 41.76 grams. One pound at the end of the Sui Dynasty was equivalent to 222.73 grams, and one or two was equal to 13.92 grams. In the Tang Dynasty, a pound was equivalent to 596.82 grams, and one or two equal to 37.30 grams.
Reference materials Source: People's Daily-Revealing: The golden reserves of ancient China were once amazing
Reference materials Source: Baidu Encyclopedia-Gold