Sterling vs. Plated Silver

At Au Jewelry Exchange Lab, we frequently get questions about the difference between plated and sterling silver. To put it simply, plated silver is made by coating a base metal with a thin layer of silver. While it may look like silver, the layer is not made of pure silver, which can result in discoloration over time. Sterling silver, on the other hand, is made of 92.5% pure silver and 7.5% of other metals, typically copper. This mixture creates a durable material that is resistant to tarnishing and scratches.

Have you ever wondered how to spot the difference between sterling and plated silver when it comes to your jewelry and flatware? Check out the tips below for ways you can spot the difference:

Look for hallmarks: Sterling silver usually bears specific hallmarks or stamps that indicate its purity. The most common hallmark for sterling silver is "925" or "Sterling," which means it contains 92.5% pure silver. Plated silver, on the other hand, may have different markings such as "EPNS" (Electroplated Nickel Silver) or "EP" (Electroplated).

Inspect for wear or damage: Over time, plated silver tends to wear down, revealing the base metal underneath. Look for areas where the silver plating has rubbed off, showing a different color or metal beneath. Sterling silver, although it may tarnish, will not have a different metal showing through.

Check for signs of bubbling or flaking: Plated silver can develop bubbles or flaking on the surface as the plating deteriorates. Examine the item closely for any irregularities or inconsistencies in the silver coating.

Test with a magnet: Most plated silver is applied over a base metal that may be magnetic, such as brass or nickel. Use a small magnet to see if the item is attracted to it. Sterling silver is non-magnetic, so if the item is attracted to the magnet, it is likely plated.

If you are still unsure whether or not your silver is plated or sterling, visit us at our Burlington lab for your complimentary evaluation where we test each piece right in front of you using our x-ray technology.