Both vintage jewelry and antique jewelry can be very valuable, but, generally speaking, a well maintained antique piece will be worth more than a piece of similar quality and lower age.

Does vintage jewelry increase in value?

With all other factors being equal, vintage and antique jewellery by their nature hold more value than brand new jewellery. Compared to a piece that has just been made, a vintage or antique piece also wont have its markup significantly affected by the retailer and manufacturer.