I collect antique Art Deco jewellery and have been shopping for it on eBay for over 20 years, because eBay has such a massive variety of unique items and powerful customisable search tools to find exactly what I want. Virtually everything I've bought has been of excellent vintage quality and well packed by friendly dealers. eBay's policies around buyer protection in the event of problems have improved recently so this only increases my confidence in shopping on this site. Some people are scared to shop online for fear of credit card fraud but eBay links to the secure site Paypal, with which you can register your credit card and spend on it without disclosing its details to sellers. I've never had my card hacked or been ripped off when buying the jewellery, so if you like vintage things you should definitely explore eBay.