This bracelet is gold plated I think; I don't see any karat marks on it. It is marked on the inside Pat. April 9 1872. The bracelet measures inside 2 1/2"; the width is 5/8" and the original safety chain is in place. This is a beautiful piece with minor signs of wear about what you would expect on a piece of this age that had been well taken care of. The metal pattern is a mixture of shiny and textured gold.