The distinction between gold vermeil and gold plated items lies primarily in the base metal used and the thickness of the gold layer. Vermeil comprises a base of sterling silver coated with a substantial layer of gold, typically at least 2.5 microns thick. Gold plated items, conversely, utilize a base metal such as nickel or brass, and the gold layer applied is significantly thinner, often less than 0.5 microns. The thicker gold application in vermeil results in greater durability and longevity compared to plated alternatives.
The significance of understanding these differences resides in the implications for value, wear, and potential allergic reactions. Vermeil, due to its sterling silver base and thicker gold layer, typically commands a higher price point and exhibits improved resistance to tarnishing. Plated items, with their thinner gold layer and potentially allergenic base metals, may offer a more budget-friendly option but are prone to quicker wear and may cause skin irritation in sensitive individuals. Historically, vermeil has been prized for its combination of precious metal appearance and relative affordability compared to solid gold.