Understanding Rhodium Plating
Rhodium, a rare and pricey metal, is employed for plating other metals. It’s not utilized alone in jewelry because pure rhodium remains brittle and lacks malleability. Nevertheless, rhodium serves as an ideal plating substance due to its hardness, exceeding that of gold. This reflective, glossy, protective coating conceals imperfections and guards jewelry against scratches. Moreover, rhodium doesn’t tarnish or corrode and doesn’t require special cleaning methods.
White gold is an amalgam of gold and other metals, including nickel, silver, or palladium. Since pure gold is inherently yellow, it retains a yellow tint even when combined with these white metals, yielding an off-white appearance. Rhodium plating imparts a brighter white shade to white gold.
Jewelry is plated by applying a rhodium layer of a precise thickness over the underlying metal. Achieving the right thickness is crucial to prevent cracking, generally ranging between .75-1.0 microns. A thinner layer exposes the base metal, while a thicker one risks cracking.
Rhodium plating is common on most white gold jewelry and also on some silver pieces. When applied to silver, rhodium renders it whiter, brighter, and more lustrous. The durability added by rhodium plating is particularly beneficial for silver, a softer metal. Since pure silver is too soft for jewelry, it’s alloyed with other metals like copper or nickel, which can tarnish. Rhodium protects against such tarnishing.
The Impact of Rhodium on Skin Sensitivity
Rhodium plating offers the added advantage of being nickel-free and thus hypoallergenic. Individuals allergic to silver or nickel won’t experience skin irritation from silver or white gold jewelry containing nickel alloys, thanks to a protective rhodium layer.
In addition to being hypoallergenic, rhodium plating provides these benefits:
- Corrosion resistance: Rhodium plating doesn’t scratch, dent, or corrode.
- High reflectivity: Its bright, shiny white color remains reflective and luminous.
The Longevity of Rhodium Plating
Rhodium plating enhances jewelry shine and durability, but you might wonder about its lifespan. Generally, rhodium plating lasts between one to two years, contingent on wear frequency. Friction wears down the plating over time. For instance, a wedding band worn daily may need more frequent replating compared to a necklace reserved for special occasions. Examine your jewelry periodically; if the base metal is visible or the shine has faded, it’s time for inspection and replating. Replating costs typically range from $50 to $100, with intricate pieces on the pricier side.
Maintaining Rhodium Plated Jewelry
As mentioned, friction accelerates the wear of rhodium plating. When cleaning your jewelry, avoid rubbing. Be cautious that skincare products, perspiration, chlorine, and cleaning agents can dull the shine of plated jewelry. Follow these tips:
Recommended Practices
- If cleaning is needed, use a little water and allow the jewelry to air dry.
- Remove jewelry before engaging in activities like gym workouts, running, or yard work to minimize friction.
Practices to Avoid
- Refrain from using water, soap, and harsh chemicals, and avoid rubbing it dry.
- Avoid repeatedly putting on and taking off the jewelry. The habit of fidgeting with jewelry, twisting rings, or playing with necklaces accelerates rhodium plating wear.
Taking Care of Your Rhodium Plated Jewelry
- Steer clear of water, soap, and harsh chemicals. A minimal amount of water won’t hurt, but let it air dry to avoid additional friction.
- Try to limit the frequency of putting on and removing rhodium plated jewelry. Many people tend to twist their necklaces or slide rings up and down. Avoid fidgeting to prolong its lifespan.
- Reserve rhodium-plated jewelry for special occasions to ensure its longevity. Avoid wearing it during activities like yard work or at the gym.
Frequently Asked Questions
Is rhodium plating durable?
Rhodium plating is durable, typically lasting one to two years, but it wears off over time due to friction.
How frequently should rhodium plating be reapplied?
Generally, rhodium plating lasts for one to two years, depending on how often it’s worn.
Does rhodium plating become green with time?
No, rhodium plating doesn’t turn green because it doesn’t tarnish or corrode. However, if the rhodium plating on brass wears off, the underlying copper might turn your skin green.
Which is superior: rhodium-plated silver or sterling silver?
Rhodium-plated jewelry offers extra protection and a brighter white finish compared to sterling silver, white gold, or platinum. The rhodium layer also defends silver against scratches and dents. The choice depends on your preferences and the type of jewelry you own.
