Of all the pawn shops in Portland, I think the 122nd All That Glitters has the most accurate of all the jewelry appraisers. If I were to look for good, durable gems, they are one of the few second-hand dealers I would trust.
Additionally, I've picked up some great well-priced electronic equipment from them particularly amps and keyboards that have proven to be well worth what I've paid.
There is one area of caution and reservation at this store and that is stringed instruments. Recently Gibson Backpack guitar was spotted there that was destroyed and unplayable that they were asking nearly full price for. I've had similar experiences with their violins and violas.
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