What is the difference between the necklace of the gold and silver and the pure gold sterling silver

1. Different content of gold and silver:
pure gold, 24K gold, that is, its gold content is 100%. In theory, 100%gold can be called 24K gold, but in reality, it is impossible to have 100%gold. Therefore, China stipulates that gold with a content of more than 99.6%(including 99.6%) can be called 24K gold.
is a method of crushing or high temperature by mechanical power to wrap the thin gold/K gold foil on the surface of the silver or other metal carcass. Generally, the internal metal carcass is not gold, but alloy materials such as copper, aluminum, and zinc. Metal bags may appear. The materials used for gold jewelry must be more than 10K.
2, the price is different:
because the gold and silver content of pure silver is higher, so pure gold and silver are more expensive.
3, different color:
The higher the gold jewelry, the deeper the color.

4. Different hardness:
The hardness of the nails of 2.5 and human nails is equivalent, so fine marks can be used to use nails.
5. Different weight:
The density of gold is 19.32g/cm3, which is more than double the density of copper.

Extension information:
The pure gold content in gold is called "gold", English is Kara, so it is called K gold. Generally called pure gold is 24K, that is, the theoretical gold content is 100%, so the gold content of:
22K is 91.6%(22/24 = 0.916)
20K gold content is 83.3%(20/24 = 0.833) The gold content of R n18K is 75% (18/24 = 0.75)
14k gold content is 58.3% (14/24 = 0.583)
12K's gold content is 50% (12/24 = 0.5) r r The gold content of N10K is 41.6% (10/24 = 0.416)
gk's gold content is 37.5% (9/24 = 0.375)
sk gold content of 33.3% (8/24 = 0.333)
in my country Generally, there are more to use 18K to inlaid jewelry, so that the inlaid jewelry is relatively high. K gold refers to the alloy mixed with gold and other metals. Karat is the measurement unit of K gold. It is divided into 24 copies of pure gold.
It is divided into different K gold according to the gold content in the jewelry, so 24K refers to pure gold. For example, 18K gold content is 18/24 = 75.0%, because 18K gold content is 75.0%, so it is also called 750 Essence
Reference materials Source: Baidu Encyclopedia-Pure Gold
Reference Data Source: Baidu Encyclopedia-Baojin

Gold -plated gold -plated fingers on the surface is gold and silver, and the interior is other metals.

How long can the price of gold bag and silver necklace usually bring coloring?