White gold jewelry often exhibits a yellowish tint over time. This color change is not indicative of the gold itself altering, but rather a result of the rhodium plating wearing away. White gold, in its natural state, is not truly white; it’s an alloy of gold with other white metals, such as nickel, palladium, or silver, which impart a lighter color than pure gold but still possess a slightly yellow hue. The rhodium plating, a hard, reflective, and naturally white metal, provides the bright white finish that consumers associate with white gold jewelry.
Maintaining the aesthetics of white gold jewelry is crucial for its perceived value and appeal. The rhodium plating process enhances the durability and luster of the piece, providing a protective barrier against scratches and wear. Historically, white gold became popular as a less expensive alternative to platinum, offering a similar look without the higher cost. The eventual revelation of the underlying yellow tint can lead to disappointment if the owner is unaware of the nature of the plating.