How do you know if diamond earrings are real?

One way to know if diamond earrings are real is to try the fog test. To do so, breathe on the earrings, and then look to see how long the fog created by your breath lasts. On real diamonds, the fog clears quickly. While this test can provide fairly accurate results, experts generally agree that the best way to authenticate diamond jewelry is to enlist the services of an experienced jeweler, jewelry dealer or appraiser. They can examine your jewelry thoroughly to give you a definitive answer as to whether or not it's real. Shop a diverse assortment of diamond earrings on 1stDibs.