I talked to a jeweler who's been making custom jewelry his whole life and asked him what his opinion was on if there could be a perfect copy.
His comment was that it could not be done.There would always be some minute detail overlooked or that is not proper.
I respect his opinion and would think it to be true but think how close to perfect you could get is another question.
As far as what an expert is,I believe there are a handful of qualified and very knowledgable people out there who could be defined as expert and know these rings well enough to be given that title.Being an expert does not mean you could never make an error however in my opinion.
