Did you know that two grams of gold may look the same… but one is worth thousands of riyals more than the other?

This is due to the impact of gold purity on its price. A difference of just a few percentage points of pure gold inside a bar can significantly raise its value. For example, a 22K gold bar (purity 91.7%) may cost more than a bar of the same weight in 21K (87.5% purity), simply because the purity is higher by 4%.

So purity is not just a number on paper—it is the hidden factor that determines the price of the piece, its appeal, and even its intended use. In this article from Gold.sa, we explore how karat drives gold prices in the Saudi and global markets, and why you might choose a piece with lower purity but greater practicality.

How Gold Purity Affects Its Price: What Experts Don’t Tell You!

Gold purity directly affects price. The higher the purity (karat), the greater the percentage of pure gold in the piece, and thus the higher the price per gram. For example, 24K gold is the highest and most sought-after for investment, containing 99.99% pure gold. Other karats, such as 22, 21, 18, and 14, are lower in price because they contain less pure gold mixed with other metals (copper, nickel, etc.), but they are stronger and more durable for daily use.

However, lower-purity gold (14K or 9K) can increase in value if it features high craftsmanship or includes gemstones. In other words, purity raises market value, but artistry and design can also add extra value.

Common Gold Karats and How Purity Affects Price and Use:

1- 24K gold: The purest form of gold at 99.99%, highest in price, containing no added metals. Used in coins and bullion, considered best for investment.

2- 22K gold: Purity 91.7% with 8.33% other metals (copper, silver), giving strength and durability. Ideal for luxury jewelry and long-term investment.

3- 21K gold