Jewellery. The purest form of gold, 24 karats, compared to all things. You are a seller of a gold piece if you go to four karats, you know what that means about 58.5% pure gold. Track more clearly, sleep, and will cost more. Gold pieces, damaged, even though price is still the same. Because nothing can be down in gold and why more and more melt is created again. Depending on your country, some of the many sets or how to become part of the percentage of the jewelry are gold karats. Some people are part of the purity of gold paint or it has something to do with value. Not really. What is mixed in gold alloys to make it stronger, more lasting impression is that the color of gold. Therefore, the color does not affect karatage. Never seen a green gold alloys mixed in. This is what you tell the difference? Well, due to the cadmium colors, but it is very rare. Copper and red gold and white gold to give a view of the usually nickel, zinc, palladium, and also mixed in. And you already know he is a pure golden yellow. Now demand is determined by how much value some or value. The same goes for the gold. White gold is more demand, it will cost more than others. And demand for gold, red, it will cost not less. But, generally cost is karatage item is determined by the golden ratio.