How can you tell if a Tiffany necklace is real?

To evaluate the authenticity of a Tiffany & Co. necklace, first check the overall quality of the piece. Tiffany & Co. is known for its immaculate craftsmanship and ultra-high-quality materials. If it’s 18k gold, it will be stamped with the number “750,” if it’s sterling silver, it’ll have a “925” stamp and if it’s platinum, it’ll have a “950” stamp. If the necklace has gemstones, they should be of high clarity and brilliance and perfectly and evenly set and matched. Shop a collection of authentic Tiffany & Co. pieces on 1stDibs.