K14gf (Gold-filled) is a high-quality material where 14-karat gold accounts for 1/20 of its total weight. Because the gold layer is mechanically bonded with heat and pressure, it rarely peels or wears off even with long-term use. Many jewelry brands use it as it offers the luxurious brilliance of solid gold at an accessible price.
Additionally, it is nickel-free and hypoallergenic, making it relatively safe and comfortable to wear even for those with metal allergies.