14K Gold Fill is constructed in two or three layers. The core metal is jewelers’ brass. A gold alloy is then bonded to one or both surfaces of the brass core with heat and pressure. Gold-filled is legally required to contain 5% or 1/20 gold by weight. This is a durable material that will not tarnish or chip. It is also safe for those with metal allergies.
14K注金 (14K Gold Filled，簡稱14KGF)，是指將 14K 金以機械壓製方式包覆於金屬胎 (如黃銅) 的表面，結合力強且耐磨度高，因此不易脫落。美國 FTC 規定，注金 (Gold Filled) 製品的金屬量至少須等於產品總重量的 1/20 (5%)，注金產品具備 K 金質感，不易致敏。