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What are Gold Karats?

Tricia Christensen
Updated May 17, 2024
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Gold karats are units of measurement for assessing amount of gold versus amount of other metals in an object. Sometimes people spell this as carat, but that spelling is usually reserved for measuring precious and semi-precious stones instead. The term karat should also not be confused with the symbol ^, which is spelled caret.

When people purchase jewelry made with gold they may see it marked as 14K, 18K, 10K or sometimes 24K. The K relates to the karat or gold amount in the jewelry. Generally, it can be said that the higher numbers mean there is a higher amount of gold in the object. So 24 gold karats has a higher percentage of gold than does 18 karats and is almost pure gold, though it can contain trace amounts of other metals.

One Karat means that the object is 1/24 gold or is roughly 4% gold, though it’s hard to find one karat gold jewelry. 10-karat jewelry, which is very common among less expensive pieces is about 42% gold. 14K and 18K pieces are about 58% and 75% gold respectively. 24 karat gold is approximately 99% or higher in gold content.

The measurements for gold karats get more complicated if an item is gold-plated or gold filled. This means only the areas of the piece where gold is actually used will have the percentage of gold indicated by gold karats. Overall percentage of a gold-plated or gold-filled piece will be much lower than the karat number shown.

One thing many people new to buying gold may wonder is why people wouldn’t naturally always buy pieces with the highest level of gold karats. There is actually a good explanation for this, which has to do with the nature of gold as a metal. Gold can be called a soft metal, which when not mixed with other metals, can bend very easily. Even a 14K or 18K piece of gold, especially a thin piece, may be bent by hand in some cases.

Though gold karats that are higher represent greater purity, they don’t necessarily mean that a gold piece will be durable. If someone is buying a piece of jewelry like a gold wedding band, they obviously don’t want it to bend out of shape from normal wear. This is why people would choose lower gold karats such as a 14K ring, instead of opting for a 24K ring, which probably would not hold up well over time.

There are some countries that do prefer to sell products in gold that are almost completely pure, and are either 22 or 24 karats. This is common in certain Southeast Asian countries and in central Asia. Such countries might view 14K gold, a common purity level used in the US, as greatly inferior.

WiseGEEK is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Tricia Christensen
By Tricia Christensen , Writer
With a Literature degree from Sonoma State University and years of experience as a WiseGEEK contributor, Tricia Christensen is based in Northern California and brings a wealth of knowledge and passion to her writing. Her wide-ranging interests include reading, writing, medicine, art, film, history, politics, ethics, and religion, all of which she incorporates into her informative articles. Tricia is currently working on her first novel.

Discussion Comments

By Lostnfound — On Jul 01, 2014

My husband was talking about buying me an anniversary band and I just couldn't believe the price difference between 10 karat and 14 karat gold! It was unreal!

We have a good, locally owned jewelry store in town and I asked the sales associate about the difference. He said we could get "more ring" in a 10 karat for our money, since we could get more, or larger diamonds in the ring for what we would pay for a 14 karat band. As Grivusangel noted, it's not like anyone can *see* whether it's 10k or 14k just by looking at it.

By Grivusangel — On Jun 30, 2014

My mom had a 14-karat gold chain and it just broke when she was taking it off. I found the chain and saw a link had simply given way. The irritating part was it was a box chain, and those were supposed to be more durable. I think 14-karat is just too soft for anything that's going to have a lot of wear. I think 10-karat is much more practical for a thin chain or ring.

I know when we bought our wedding bands, the 10-karat bands were probably 40 percent cheaper. They looked just as nice, have worn just as long, and I don't see the sense in spending a lot of extra money just so you can say something is 14 karat gold, or 24 karat gold. No one will know the difference, otherwise.

Tricia Christensen

Tricia Christensen


With a Literature degree from Sonoma State University and years of experience as a WiseGEEK contributor, Tricia...
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