White gold is often plated with a thin rhodium layer to improve its appearance while sterling silver is often rhodium-plated for tarnish resistance.
The use of rhodium plating spread to white gold and sterling silver jewelry as a means of creating a highly durable, tarnish resistant surface. To ensure rhodium plated jewellery lasts as long as possible, keep it cleans with a mixture of mild liquid shampoo and a little water. In its natural solid state Rhodium is far too hard to work, but it is used as an alloy in the smelting of platinum and palladium. Rhodium plating is a metal deposition process used to coat materials with a decorative and protective layer of rhodium. Rhodium plating is used to increase the strength, durability, and bright look of silver, platinum, and white gold rings. However, the plate on rings will wear off with time and it is important to buy a ring that has the right thickness of plating to avoid discoloration of the ring and constant re-plating. Rhodium is a pure silver-white element, and it is listed as a transition metal on the periodic table. It is a member of the platinum group, along with iridium, osmium, palladium, platinum, and ruthenium. Keep in mind that all white gold is plated with rhodium-but silver and platinum are only occasionally plated with rhodium. 1  If a white gold ring has been alloyed with nickel, and the plating wears off, the wearer can begin to have an allergic reaction as the nickel comes into contact with their skin. Rhodium is a pure silver-white element, and it is listed as a transition metal on the periodic table. It is a member of the platinum group, along with iridium, osmium, palladium, platinum, and ruthenium. White gold is often plated with a thin rhodium layer to improve its appearance while sterling silver is often rhodium-plated for tarnish resistance. Rhodium detectors are used in nuclear reactors to measure the neutron flux level. It has only one naturally occurring isotope, 103 Rh. Naturally occurring rhodium is usually found as the free metal, alloyed with similar metals, and rarely as a chemical compound in minerals such as bowieite and rhodplumsite. It is one of the rarest and most valuable precious metals. Rhodium is a silver-white hard metal often found in platinum ores. It is the most expensive precious metal. In its natural solid state Rhodium is far too hard to work, but it is used as an alloy in the smelting of platinum and palladium. Rhodium plating is a metal deposition process used to coat materials with a decorative and protective layer of rhodium. Rhodium is a noble metal that imparts an extremely bright and hard wearing finish when applied as plating. When applied as a thin plate, it affords a durable finish of exceptional brightness Rhodium is a noble metal, resistant to corrosion, found in platinum-or nickel ores together with the other members of the platinum group metals. It has only one naturally occurring isotope, 103 Rh. Naturally occurring rhodium is usually found as the free metal, alloyed with similar metals, and rarely as a chemical compound in minerals such as bowieite and rhodplumsite. It is one of the rarest and most valuable precious metals. Rhodium is a precious metal, a member of the platinum family. Rhodium electroplating is used, especially on jewelry, to provide a surface that will resist scratches and tarnish, and give a white, reflective appearance. Rhodium plating is most often found on white gold. The term white gold is something of a misnomer. Gold is actually yellow, what jewelers call white gold today is an alloy (mixture) of gold and a white metal-usually nickel, silver, or palladium (another member of the platinum family) Also it tarnishes. Rhodium plated silver is fine or sterling silver that is polished and dipped in rhodium. It has a bright finish, similar to white gold items, and it doesn't tarnish. You can't have a ring sized and if you get it fixed, you ruin the plating. I personally prefer straight silver.  Rhodium plate on wedding rings is-on average - 1/100th of the width of a human hair. Rhodium plate increases resistance to surface scratches for white gold and silver rings. When plated the right way, rhodium can increase surface durability on white gold and silver rings. Rhodium is a pure silver-white element, and it is listed as a transition metal on the periodic table. It is a member of the platinum group, along with iridium, osmium, palladium, platinum, and ruthenium. Rhodium is a chemical element with symbol Rh and atomic number 45. It is a rare, silvery-white, hard, and chemically inert transition metal. It is a member of the platinum group. It has only one naturally occurring isotope, 103 Rh. Naturally occurring rhodium is usually found as the free metal, alloyed with similar metals, and rarely as a chemical compound in minerals such as bowieite and rhodplumsite. It is one of the rarest and most valuable precious metals.
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what is rhodium plate