How do you measure the size of pearl earrings?

How you measure the size of pearl earrings is through their shape. If you have a classic pair of round pearl earrings, measure the diameter across. For pearl earrings in other shapes, measure the height of the stone and its width. Most jewelry makers round sizes up to the closest 0.5 millimeter. Explore a wide variety of pearl earrings on 1stDibs.