Does it make sense to have items appraised even if they are not real gemstones/materials? I bought some costume jewelry from a local seller I found on Craigslist. The jewelry came from her boyfriend's grandmother who died recently. The grandmother moved to the US 12 years ago from Bulgaria, so most of these pieces are "old" (pre-1960s). The seller only charged me $25 for 5 pairs of clip-on and screw-back earrings, 2 necklaces, a bracelet and 2 pins. She kept saying to get them appraised because they might be worth something since they are old and European. I'm familiar with vintage costume jewelry because I inherited a bunch of peices from my grandmother....but I never thought it was valuable in terms of resale/appraisal value. Any opinions? Thanks.