no, if it was I would have taken it in to be checked. I also would have mentioned it in the description. I have a suspition its fake, but it is really sturdy and very well made if it is. A very good fake if it is.
Jeweler says it is high quality costume jewelry, very well made and worth a pretty penny for being costume jewelry because of the quality. Should last a long time! She gave me an estimated price but I will not say the prive because its only an estimate. I could be selling it on ebay though so bid well to make it worth my choice to put it on listia instead.