Mutually, totally unique! Some of the most unusual items, not to everyone's taste, can fetch high prices. I'm continually surprised. Getting an expert appraisal, in this case, is a bit like playing Tombola. The cost of $19.70 US (Jan 2012) for an Expert Appraisal on Antique Jewelry Investor just may pay off, but my advise is not to hold out an expectation.