Buy and sell jewelry via the Fortuna Jewelry Auction app. Based in New York City, Fortuna specializes in diamond, estate, signed, and antique jewelry of all eras. Fortuna’s auctions are a platform for jewelry collectors and members of the trade to securely buy and sell jewelry on an international scale. Anyone can sell, and anyone can bid. We hold 4-6 auctions annually featuring a variety of signed jewelry, antique jewelry, watches, and objet d’art. Discover beautiful and rare jewels from famou