Pretty, heirloom necklaces

I've always had a soft spot for heirloom jewelry, mainly because they've been the prize of trekking through a flea market or a smelly consignment shop.  I keep them near and dear to my heart...many are under $20, but look like a hell of a lot more, which is the best satisfaction I can get.  Here are some inspirations and cues on what to look out for on your next hunt:

{1. Doyle & Doyle, 2. Urban Outfitters, 3. Forever 21, 4. Doyle and Doyle, 5. 1928}