semi precious stones jewelry wholesale That's the gold of the necklace!
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roseco wholesale jewelry findings supplies The gold price of the jewelry of Fengxiang Yinlou is about 295 yuan, which is higher than the gold spot. The cost of the cost of work cost is added.
If discrimination
1. Whether the gold has white highlights
In material cutting to cut the gold bar or gold jewelry, and observe the cut surface with a magnifying glass. Gold and cannot be fused together, indicating that the gold is mixed with 铱.
2. Measure the proportion.
In the weight of a pure gold bars with an balance, and then put the gold bars into a measuring cup and flood the gold bar. Then put the detected gold bars in a measuring cup, whether the scale of the water rises or decreases. As long as it changes, it means that the gold bar is not pure gold. But if it is gold jewelry, this method is not applicable because there is air in gold jewelry.
3. Real gold is not afraid of fire.
This gold bars or gold jewelry burned for a while to observe its changes. Because the oxidation reaction occurs with oxygen in the air, the gold bars with insufficient purity will become gray; and the color of the pure gold will be red after the fire is baked. However, this method may be destroyed to jewelry.
ebay wholesale jewelry If it is 425 yuan per gram in February 2012, it is remembered that Fengxiang Yinlou and Lao Fengxiang are not the same brand, but also different companies.
mermaid kisses jewelry wholesale This month, I replaced an old jewelry in Fengxiang Yinlou in Ningbo Tianyi Plaza. My twenty grams of Fudou Pendant, which was deducted for two hundred yuan for depreciation. Is it a big loss?
united wholesale jewelry On August 28, 2012, the gold price of Fengxiang Yinlou was 405 yuan.
tiger mountain jewelry wholesale I bought 428 I bought on February 23. Where is his brand mixed? After I bought it, I found that it was not the Fengxiang brand. What is the Ming brand 8?