While rising costs of labor in China have created challenges for the manufacturing sector, this has led to greater domestic consumption of luxury products, including jewelry. The highest growth potential lies in the inland urban centers, as Chinese citizens continue a massive migration from rural areas to the cities.
Minted in 22-karat gold  Using the durable gold standard established for gold circulating coinage more than 300 years ago, each Gold Eagle coin is minted in 91.67% fine gold alloyed with a small amount of silver and copper added to harden and protect it against damage. Pure, 24-karat gold is actually quite soft. Adding alloy to pure gold makes it many times more durable than gold itself. Each Gold Eagle coin contains its specified weight (one-ounce, half-ounce, quarter-ounce, or tenth-ounce) in pure 24-karat gold. The alloy weight is extra. A one-ounce American Gold Eagle, for example, actually weighs 1.0909 troy ounces.
The quantity of gold by volume in a less than 24-karat gold alloy will be different according to the alloys used. We know that standard 10 karat yellow gold that standard 18-karat yellow gold consists of 75% gold, 12.5% silver and the remaining 12.5% of copper by weight.he carat (abbrev ct or K) is a measure of the purity of gold. In the US and Canada the spelling karat has been adopted solely for the measure of purity and carat referring to the mass weight.