18k Gold vs. 24k Gold

What's the Difference?

18k gold and 24k gold are both popular choices for jewelry and other luxury items, but they differ in terms of purity and durability. 18k gold is made up of 75% pure gold and 25% other metals, such as copper or silver, which are added to increase its strength and durability. This alloy composition makes 18k gold more resistant to scratches and dents compared to 24k gold. On the other hand, 24k gold is considered pure gold, as it contains 99.9% gold and no other metals. While 24k gold is more malleable and has a richer, more vibrant color, it is also more prone to scratches and dents due to its softness. Ultimately, the choice between 18k and 24k gold depends on personal preference and the desired balance between purity and durability.


Attribute18k Gold24k Gold
Purity75% gold, 25% other metals99.9% gold
HardnessRelatively harderSofter
PriceLess expensiveMore expensive
Common UsesJewelry, watches, and other accessoriesJewelry, coins, and bullion
Scratch ResistanceMore resistant to scratchesLess resistant to scratches
AvailabilityWidely availableLess common

Further Detail


Gold has been a highly valued precious metal for centuries, admired for its beauty and rarity. When it comes to jewelry and investment, two popular options are 18k gold and 24k gold. While both are made of gold, they differ in terms of purity and durability. In this article, we will explore the attributes of 18k gold and 24k gold, highlighting their unique characteristics and helping you make an informed decision.

18k Gold

18k gold, also known as 750 gold, is an alloy made up of 75% pure gold and 25% other metals such as copper, silver, or zinc. The addition of these metals enhances the durability and strength of the gold, making it suitable for everyday wear. The higher percentage of non-gold metals also gives 18k gold a distinct color, often appearing slightly less yellow than 24k gold.

One of the key advantages of 18k gold is its resistance to scratches and tarnish. The presence of alloy metals makes it more durable than its purer counterpart. This durability is particularly important for jewelry pieces that are frequently worn, as it reduces the risk of damage and extends the lifespan of the item.

Furthermore, 18k gold is an excellent choice for individuals with sensitive skin. The alloy metals used in its composition reduce the likelihood of allergic reactions, making it a safer option for those prone to skin irritations. This makes 18k gold a popular choice for engagement rings, wedding bands, and other jewelry items that are worn close to the skin for extended periods.

However, it is worth noting that 18k gold may require occasional cleaning and polishing to maintain its luster. The presence of alloy metals can cause the gold to tarnish over time, although this is a minor concern compared to lower karat gold alloys.

24k Gold

24k gold, also known as pure gold, is the highest level of purity available for gold jewelry. It is composed of 99.9% gold, with no other metals added. This makes 24k gold the most malleable and softest form of gold, often referred to as "pure gold" due to its lack of impurities.

One of the most notable attributes of 24k gold is its vibrant yellow color. Since it is not mixed with any other metals, it retains the natural hue of gold in its purest form. This rich color is highly sought after by many individuals, especially those who prefer a bold and luxurious look.

Another advantage of 24k gold is its resistance to tarnish. Since it does not contain any alloy metals that can react with air or moisture, it maintains its shine and luster over time. This makes 24k gold an excellent choice for investment purposes, as its value remains stable and unaffected by external factors.

However, the softness of 24k gold can also be a disadvantage. Due to its malleability, jewelry made from pure gold is more prone to scratches, dents, and deformations. This limits its suitability for everyday wear, as it may not withstand the rigors of daily use as well as 18k gold.

Additionally, 24k gold is not recommended for individuals with sensitive skin. The absence of alloy metals means that pure gold is more likely to cause allergic reactions or skin irritations. Therefore, it is important to consider this factor when choosing between 18k and 24k gold, especially if you have known sensitivities.


When it comes to choosing between 18k gold and 24k gold, it ultimately depends on your personal preferences and requirements. If you prioritize durability, resistance to tarnish, and a wider range of design options, 18k gold may be the ideal choice for you. On the other hand, if you value the rich yellow color, purity, and long-term investment potential, 24k gold might be more appealing.

Remember to consider factors such as skin sensitivity, budget, and the intended use of the jewelry when making your decision. Whether you opt for the strength and versatility of 18k gold or the purity and elegance of 24k gold, both options offer their own unique attributes that can enhance your jewelry collection or investment portfolio.

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