The different carats of gold: 10K, 14K, 18K

Gold has been a precious metal for thousands of years, valued for its beauty and value. When shopping for gold jewelry, you can often notice carat indications, such as 10K, 14K, 18K, and even more. But what do these numbers actually mean? In this article, we'll explore the different carats of gold and what they imply in terms of purity and quality.

What is a carat?

Before we get into the details of the different carats of gold, it is important to understand what a carat is. Carat is a unit of measurement used to express the purity of gold. One carat is 1/24th of the total mass of the alloy. For example, a 24-gram piece of jewelry in 18-carat gold is made of 18 grams of pure gold. Thus, the higher the carat number, the purer the gold.

L'or 10 carats - 10K

10K gold, also known as 10K, is an alloy that contains 10 parts pure gold and 14 parts of other metals such as copper, zinc, and nickel. This means that 10-karat gold is made up of 41.7% pure gold. Although 10-karat gold is less pure than other carats, it is valued for its durability and affordability.

L'or 14 carats - 14K

14-karat, or 14K, gold is an alloy made up of 14 parts pure gold and 10 parts other metals. This represents a pure gold content of 58.3% – 58.5%. 14-karat gold is one of the most commonly used carats for jewelry making, as it offers a good balance of purity, durability, and value.

L'or 18 carats - 18K

18K gold, also known as 18K, is an alloy that contains 18 parts pure gold and 6 parts other metals. This represents a pure gold content of 75%. 18K gold is considered to be of high quality and is often used for luxury jewelry. It offers rich color and high resistance to oxidation.

Beyond 18 carats

It is also possible to find gold with a fineness greater than 18 carats, such as 22K or 24K. 22-karat gold is made up of 22 parts pure gold and 2 parts of other metals, which represents a pure gold content of 91.7%. 24-karat gold is considered 99.9% pure gold, but due to its softness, it is rarely used for jewelry and is instead used for bars and collectibles.

Carats of gold in Europe: ae Percentage approach of pure gold

In Europe, the designation of the different carats of gold differs slightly from that used in Canada and the United States. Instead of using the terms "10K", "14K" and "18K", Europe uses the designation as a percentage of pure gold contained in the alloy.

In Europe, 24-carat gold is considered 100% pure gold. However, it is rare to find jewelry made of 24-carat pure gold due to its high tenderness and malleability. The most common carats used in Europe for jewelry are 18 carats (75% pure gold), 14 carats (58.5% pure gold), 10 carats (almost 42% pure gold), and 9 carats (37.5% pure gold).

The use of the percentage designation makes it easier for European consumers to understand the amount of pure gold contained in a piece of jewelry. For example, 18-karat gold jewelry in Europe contains 75% pure gold, while 14-karat gold jewelry contains 58.5% pure gold.

It is important to note that the percentage designation of pure gold is not universal and may vary slightly from one European country to another. It is therefore always advisable to check the specific standards of the country where you are making your purchase.

The color of gold according to carats

The color of yellow varies depending on the number of carats of gold used in a piece of jewelry. The higher the number of carats of gold, the more intense and rich the color of the yellow will be.

For jewelry made of 24-carat gold, which is 100% pure gold, the color of yellow is usually the most intense and vibrant.

When going down in carats, the color of the yellow may vary slightly. For example, 18-karat gold jewelry has a more intense yellow hue than 14-karat gold. 14-karat gold may have a slightly paler yellow hue, due to the presence of other metals in the alloy.

For 10-karat gold jewelry, which has the lowest gold content among the most common carats, the color of the yellow may be more subtle and have a slightly lighter hue.

It is important to note that the color of yellow can also be influenced by other factors such as the composition of the alloy, the quality of the gold, and the processing techniques used. Additionally, personal preference plays an important role in choosing which color of yellow is best for each individual.

In conclusion, gold carats are an important indicator of the purity and quality of gold jewelry. The higher the number of carats, the purer and yellower the gold. The choice of carat depends on your personal preferences, budget, and the intended use of the jewelry. Whether you opt for a higher carat for its purity or a lower carat for its durability and affordability, gold jewelry remains a safe and timeless value.

Source:

• Gemological Institute of America (GIA) : https://www.gia.edu/
• World Gold Council : https://www.gold.org/