Add-on Option: Upgrade to 14K Gold-Filled Necklace

This is an add-on option and cannot be purchased individually. GOLD FILLED Gold-filled material, also known as "gold overlay," is made by bonding a thick layer of gold alloy (typically 14K or higher) to a base metal core. The gold layer constitutes at least 5% of the item's total weight. Compared to gold plating, gold-filled items have a significantly thicker layer of gold. This layer is bonded through heat and pressure, ensuring it is much less likely to wear off or tarnish over time. Its exceptional durability makes gold-filled material highly sought after for jewelry components and accessories. "Gold-filled" offers an accessible way to enjoy the genuine luster of gold and is a popular material in Western countries. While generally considered less likely to cause metal allergies, individual reactions can vary.