Quality Difference Between Gold Overlay and Gold Plated

While gold-plated and gold-overlay products have similar minimum requirements on karat designation, the difference in methods used to calculate the lowest allowable proportion of gold to base metal contribute to disparities in quality, as well as strength. In determining the amount of gold-based on thickness of coating, gold-plated products often contain less gold than gold-overlay. The lower proportion of gold results in accelerated deterioration, with the gold-plating becoming scratched and worn, cheapening the appearance and undermining quality.

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