Why, in most cases, white gold Jewelry is Rhodium Plated.
Rhodium-plated means jewelry made from a base metal of gold, silver, or other alloys is coated in a thin layer of rhodium for extra strength and luster. Jewelry plated in rhodium is shinier and more durable than other metals. Rhodium plating does not scratch, dent, or corrode and retains its luster.
WHY IS JEWELRY RHODIUM PLATED?
Rhodium-plated jewelry adds an extra layer of protection to jewelry and produces a brighter white than sterling silver, white gold, or platinum. Realistically, jewelry cannot be crafted from solid rhodium because, despite its strength, rhodium is brittle. A layer of rhodium plating must be just the right thickness to keep it from cracking--.75-1.0 microns is perfect. Any thinner and the metal underneath would show; any thicker and the coating would crack. That perfect layer of rhodium can enhance the appearance, quality, and longevity of your jewelry.
IS RHODIUM HYPOALLERGENIC?
Rhodium is hypoallergenic because it does not contain nickel which can cause serious skin reactions. It actually guards against other metals alloyed with nickel to keep your skin safe. If you have a nickel allergy or just want to protect your skin, then rhodium is an excellent choice for you.
IS RHODIUM JEWELRY SAFE TO WEAR?
Absolutely. Rhodium is non-toxic and completely safe. It’s the recommended option for sensitive skin, babies, and new piercings. Because rhodium is nickel-free, it does not irritate ears or leave behind skin rashes.
DOES RHODIUM TARNISH?
Rhodium is nickel-free, so it does not tarnish. Rhodium is also corrosion-resistant and does not rust. Because rhodium is strong, it does not need to be alloyed with other metals like nickel or copper that, over time, will corrode and leave behind dark green marks on your skin.