Finejewelers 14k Yellow Gold Polished Love Knot Earring Jackets for 3mm Studs Finejewelers is a reputable American Family owned Business since 1955 and now based in New York, we use the highest quality workmanship and materials, and proudly stand behind all of our products. Metal: 14 kt Yellow Gold. Dimensions: Width: 10.00 mm Length: 12.00 mm All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free.