How do I tell if a necklace is real gold at home?

At home, you can tell if a necklace is real gold by using a magnet. Put the magnet near the gold and see if it sticks. If it does, your piece is either a base metal plated in gold or an entirely different metal. While there are additional ways to test jewelry at home, these methods may cause discoloration or damage your necklace. As a result, you may wish to consult a certified appraiser or experienced jeweler if you need assistance with material identification. Shop a wide range of gold necklaces on 1stDibs.