I have an old gold and enamel cross which I had an appraisal done on. The jewelry specialist felt that it was 16th-17th century. When it was shown to another appraiser they felt it was a victorian copy of a medieval piece. Another jewelry historian I showed it to felt it was 17th century and they did at one point work in a museum. I'm looking for someone very qualified to look at the piece and appraise it. Due to the possible age of the piece it seems very hard to get a good appraisal because it is such a niche area which many jewelers seem to have no experience in and is really a marriage between art history and jewelry. Any recommendations for a jewelry appraiser in the US?