Gold vermeil jewelry involves a thicker layer of gold coating, typically at least 2.5 microns thick, applied onto a base metal such as sterling silver or brass. This thicker layer contributes to its durability and longevity, giving it a more luxurious appearance compared to standard gold plated pieces.

In contrast, gold plated jewelry features a thinner layer of gold applied onto a base metal, often through electroplating. This layer is generally thinner than that of gold vermeil, making gold plated jewelry more susceptible to wear and tarnishing over time.

While both types of jewelry offer the aesthetic appeal of gold at a more affordable price point than solid gold pieces, gold vermeil typically provides higher quality and durability due to its thicker gold coating.