Why are silver rings so much more expensive than copper rings

I designed a silver ring. At first, I planned to use copper material, and I asked the silver ring factory for a price, but now I want to change it to silver material. The estimated weight is 2 grams, but the price of the silver ring factory is obviously higher than the actual price. A lot, why is that?

The quotation of silver jewelry factory is generally like this: if it is copper jewelry, according to the cost of raw materials, plus production cost, plus profit; but if it is silver jewelry, it needs to add a certain amount of loss.

For example, if the price of your copper ring is 10 yuan, and now it is changed to a 2-gram silver ring, then the cost of silver is calculated at 5 yuan/gram, which increases by 10 yuan, but this 10 yuan is not all. In addition, the silver jewelry factory costs 10 yuan to buy silver, and after the cost of 10 yuan is processed into a ring, a certain profit will be charged (because the cost is 10 yuan) Yuan, it is still 10 Yuan when it is impossible to make a ring). Therefore, the quotation of the silver jewelry factory will not be 10 yuan + 10 yuan = 20 yuan as you imagine.