How can you tell if a vintage Tiffany necklace is real?

To tell if a vintage Tiffany necklace is real, look closely at the links and clasp. Due to their expert craftsmanship, Tiffany & Co. links appear continuous and have no visible seams or solder marks. The clasp should also be sturdy and free of solder or glue marks. Hallmarks can also help you authenticate your piece. Most Tiffany & Co. jewelry will say the maker's full time or “T&Co.” Items marked simply with “Tiffany” are usually not authentic. Comparing the markings on your jewelry to hallmark images found on trusted online resources can help you identify counterfeits. A certified appraiser or experienced dealer can also be of assistance. On 1stDibs, explore a variety of vintage Tiffany & Co. necklaces.