✦14K GOLD FILLED✦ A premium offering of our best selling styles, our GOLD FILLED jewelry is made with a solid brass base and Filled in 14k gold (made in USA)that is20x thicker than the industry standard vermeil. the gold layer is100x thicker than gold plating.it is the best alternative to solid 14k gold , it hypoallergenic material, made to last. you can wear it 24/7 for decades without worrying about tranishing or the gold layer wearing off.