Simple Gold Band Ring, perfect for stacking! New condition with box & original receipt! Material: 100% Gold Filled Width: 3mm Size: 7 1/2 Includes: - Gold Ring - Box Gold filled jewelry is a base metal covered with a thick layer of gold ( usually 5% or 1/20 solid gold overlay ). Because of the thick layer of real gold on top of our pieces, they wear on the skin just like real gold! This means, gold filled pieces are generally safe for individuals with sensitive skin.