Got a gold ring, necklace, bracelet, or pair of earrings and wondering just how pure it really is? Whether it’s a family heirloom, a gift, or something you’re thinking of selling, it’s only natural to want to know the true quality of your gold.
While a certified jeweler can give you the most accurate reading, there are a few ways you can get a general idea of gold purity on your own—right from home.
What “Pure Gold” Really Means
Pure gold is 24 karats (often stamped as “24K”), meaning it’s made of 100% gold with no other metals mixed in. However, pure gold is extremely soft and not ideal for most jewelry, as it bends and scratches easily. That’s why most gold items are made from gold alloys, which are mixtures of gold and stronger metals like silver, nickel, or copper.
Understanding Karats: The Purity Scale
Gold is measured in karats (K)—not to be confused with carats, which measure gemstone weight. The karat scale runs from 1 to 24:
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24K = 100% pure gold
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18K = 75% gold
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14K = 58.3% gold
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10K = 41.7% gold
The higher the karat, the more gold is in the piece, and typically the more vibrant the yellow color appears.
Gold Alloys: Why the Color Varies
Gold jewelry comes in different colors, each created by combining gold with other metals:
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Yellow gold is closest to natural gold and usually has a higher gold content.
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White gold is mixed with palladium, nickel, or silver, giving it a silvery tone.
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Rose gold (or pink/red gold) is primarily gold mixed with copper.
The amount of gold used in these alloys affects both the color and karat. For example, rose gold is usually lower in karat due to the high copper content.
Can You Estimate Gold Purity by Sight?
While not exact, you can make an educated guess about gold purity based on color. Comparing your piece with another item of known karat—side by side—is more accurate than relying on online photos.
For instance, if you have a 10K ring and a bracelet that looks richer in color, your bracelet may be closer to 14K or 18K. It’s not a foolproof method, but it can give you a rough idea.
Need to Be Sure?
If you want to be 100% certain about your gold’s purity—especially before selling—it’s best to have it tested with tools like an acid test kit, XRF analyzer, or by a trusted jeweler or pawn professional.
