What markings are on real gold chains?

Real gold chains will typically display markings that represent the purity of the gold used to produce them. In some cases, pieces may list the karat weight with marks like 18K or 14K. On other pieces, you may see the metal purity represented by a three-digit hallmark shown on its own or inside a hexagon. The most common markings in this system are 585 for 14-karat and 750 for 18-karat. If you need assistance determining whether your chain is real gold, a certified appraiser or experienced jeweler can assist you. On 1stDibs, find a large selection of gold chains.