The karat is a measure to indicate the purity of gold alloy. It is common knowledge that gold, a precious metal, is quite soft. To overcome this softness, gold has to be alloyed with other elements and compounds in an attempt to impart hardness and certain other properties. The final quantum or quantity of gold found in such alloys is usually expressed in terms of a karat weight. A composition having 100% gold is considered as a 24-karat composition. However, if the alloy has a lesser amount of gold, it is expressed in terms of a particular karat weight, which is a percentage of the amount of gold. For example, a 14-karat alloy would have 14/24=58.33% gold, with the balance being other elements and/or compounds.

Generally, 14-karat gold alloy compositions are used in the manufacturing of jewelry. These alloys compositions are based on a gold-silver-copper-zinc combination. The usage and application of these alloys are determined by their main physical properties, such as hardness, strength, elongation, range of melting temperature, grain size, color etc. These properties can be measured, and are often incorporated in the specifications of the alloy. Traditionally, 18-karat green gold alloys have been used to provide a color contrast to other alloys in multicolored jewelry items such as bracelets, necklaces and the chains.

The process of understanding what exactly a karat is becomes quite simple when understand gold as an alloy (a mixture of various metals) where the karats define the percent of pure gold in the alloy. Therefore, you may determine the percentage of pure gold in any gold piece by dividing the karat by 24. For example, 18K gold means 18/24which in turn indicates 0.750=75% pure gold.

Any alloy with less than 10-karat gold cannot be legally marked or sold as gold jewelry in any part of the United States. The legal requirements for minimum gold content vary widely from country to country. Any alloy with 9 Karat is acceptable in Britain, while in France, Italy and Switzerland, 18k is the lowest permissible standard to be called gold.

Because pure gold is naturally a soft, malleable metal, it is alloyed with other elements to strengthen it, which in turn can affect its color and cost. Much of today’s gold is mixed with a percentage of alloys – metals that modifies the color of gold and makes it harder and stronger. The karat mark in your gold jewelry tells you the percentage of pure gold to alloy. The higher the karat quality the greater the proportion of gold it will contain.

You must also understand that gold alloys, apart from hardening gold for jewelry, can also affect the color. For instance, yellow gold has copper and silver added, white gold has nickel, zinc and copper added, green gold has silver, zinc and copper added and rose gold has copper and silver added.

Gold was first discovered several thousands years ago in its natural state, which led to mining for gold all over the world. Its brilliance, natural beauty, great malleability and resistance to damage made it a prized raw material to work with. Over a period of time, gold gave rise to the concept of money. Today gold is used for jewelry fabrication, industrial application, and as a monetary standard by governments and central banks and by private investors.

The karat is a measure to indicate the purity of gold alloy. It is common knowledge that gold, a precious metal, is quite soft. To overcome this softness, gold has to be alloyed with other elements and compounds in an attempt to impart hardness and certain other properties. The final quantum or quantity of gold found in such alloys is usually expressed in terms of a karat weight. A composition having 100% gold is considered as a 24-karat composition. However, if the alloy has a lesser amount of gold, it is expressed in terms of a particular karat weight, which is a percentage of the amount of gold. For example, a 14-karat alloy would have 14/24=58.33% gold, with the balance being other elements and/or compounds.

Generally, 14-karat gold alloy compositions are used in the manufacturing of jewelry. These alloys compositions are based on a gold-silver-copper-zinc combination. The usage and application of these alloys are determined by their main physical properties, such as hardness, strength, elongation, range of melting temperature, grain size, color etc. These properties can be measured, and are often incorporated in the specifications of the alloy. Traditionally, 18-karat green gold alloys have been used to provide a color contrast to other alloys in multicolored jewelry items such as bracelets, necklaces and the chains.

The process of understanding what exactly a karat is becomes quite simple when understand gold as an alloy (a mixture of various metals) where the karats define the percent of pure gold in the alloy. Therefore, you may determine the percentage of pure gold in any gold piece by dividing the karat by 24. For example, 18K gold means 18/24which in turn indicates 0.750=75% pure gold.

Any alloy with less than 10-karat gold cannot be legally marked or sold as gold jewelry in any part of the United States. The legal requirements for minimum gold content vary widely from country to country. Any alloy with 9 Karat is acceptable in Britain, while in France, Italy and Switzerland, 18k is the lowest permissible standard to be called gold.

Because pure gold is naturally a soft, malleable metal, it is alloyed with other elements to strengthen it, which in turn can affect its color and cost. Much of today’s gold is mixed with a percentage of alloys – metals that modifies the color of gold and makes it harder and stronger. The karat mark in your gold jewelry tells you the percentage of pure gold to alloy. The higher the karat quality the greater the proportion of gold it will contain.

You must also understand that gold alloys, apart from hardening gold for jewelry, can also affect the color. For instance, yellow gold has copper and silver added, white gold has nickel, zinc and copper added, green gold has silver, zinc and copper added and rose gold has copper and silver added.

Gold was first discovered several thousands years ago in its natural state, which led to mining for gold all over the world. Its brilliance, natural beauty, great malleability and resistance to damage made it a prized raw material to work with. Over a period of time, gold gave rise to the concept of money. Today gold is used for jewelry fabrication, industrial application, and as a monetary standard by governments and central banks and by private investors.