This is a vintage pin, I think the plastic is Lucite, made in the 1950's. It is in perfect condition, it looks like it sat in a jewelry box the entire time. It is 2" across. It has the Opal and Pearl lucites, and rainbow rhinestones. No discolored, tarnished, or worn metal anywhere. I will pack it well, and ship first class mail with tracking. I combine shipping, so look at my other pieces.