What a Stunning piece of Signed Eisenberg Jewelry. This brooch/Pin is so beautiful you would have to see it to appreciate it. It is Rhodium plated and a fine quality, still fashion or costume brooch or pin. This piece has a fantastic design and the quality is fantastic. It is a perfect substitute for diamonds and white gold. It is 2 1/4" long and 2" wide, the pin is in working condition with no damage. A very Large and Stunning Piece!! The rhinestones are large and very clear. This is just a really stunning piece. It has small rhinestones around large rhinestones all of the way around the brooch. No damage of any kind. This piece is beautiful. If you check google, you will find this:
Q. What is "rhodium" and what does it have to do with white gold jewelry?
A. Rhodium is a very precious metal that can cost ten times as much as gold or more! Rhodium is generally not considered a feasible material to make jewelry from, because it is stressed and brittle, very difficult to "work" properly for jewelry making, and it’s price is terribly volatile.
(About Rhodium price volatility: rhodium is never mined for its own self because it’s too rare for that to be feasible; rather, it’s a minor by-product from platinum mining & refining. So, when platinum is in high demand and a lot is being mined, a lot of rhodium is available, and its price can decline to about the same price as gold; but when platinum mining is down, rhodium is virtually unavailable and becomes fabulously costly (over $12,000 ounce at one point in 2011 when gold was well under $1,000 an ounce).
But rhodium is fabulous as a plating for jewelry because it is glitteringly, dazzlingly, white and mirror-like. It’s like chrome, but much whiter, and the most reflective of all metals.
Rhodium plating makes diamonds look bigger and better because it’s so bright that it glints like the diamonds. From a couple of feet away and under most lighting conditions it’s hard to see where the stones end and the metal begins. Nothing sets off diamonds like rhodium plating does. So most white gold jewelry today is rhodium plated. But the rhodium is only a plating and therefore it will wear off eventually and require re-plating.