The wedding ring must be worn on the left hand ring finger.
The wedding ring has been worn on the left hand ring finger since Roman times, when according to The Knot, they believed this finger 's vein ran directly to the heart, known as the "vein of love". Although we now know this is not true, the tradition continues. Prior to this belief, the ring was actually worn on the index finger. Some European cultures use the right hand for the wedding band while others use the left for the engagement ring and the right for the wedding band. Couples have traditionally exchanged rings for thousands of years as the circle is a symbol of everlasting love. Egyptians in approximately 3000 BC described the wedding ring as a symbol of "without beginning, without end". Originally made of hemp which needed constant replacement, and then iron by the Romans, gold is now the most oft used material for wedding bands. Italians first used diamonds, who believed it was created by the flames of love.