The metals of jewelry making

The three basic metals are silver , gold and white gold, three of them are identified primarily by color. The following is about the three metals:
The first is silver, it is known for its shiny --"silver", when you prepare to buy sterling silver on the market, you should look at the stamp of "925" which indicates the item has a silver content of almost 93 percent silver, and the other 7 percent alloy gives the silver hardness and durability. If it hasn’t the alloy, the silver piece would be too soft to wear.
The second is gold, it is best known in its bright yellow color. Actually, gold comes in a variety of colors from white to pink, depending on which alloy is added. Generally, the fine gold is 99.9 percent pure, is called 24 karat gold. But most is 18 karat (18K) gold which consists of 75 percent pure gold and 25 percent alloy, the other is fourteen karat (14K) gold jewelry, it has a gold content of 58.33 percent gold and the remaining metal content is alloy.
The third is white gold, it has the same gold content as yellow gold, but the alloy used to strengthen it gives it a silvery color. The white gold also is called platinum; it is the most valuable and most durable of all the jewelry metals and is especially popular for engagement and wedding rings.