We have engagement rings and wedding rings, the two have different purposes. Some big institutes believe it was a tradition invented by the Barbarians. They were thought to be using it to use it to lure their captors into marrying them. Others give the credit of this custom to the Romans, who gave the bride a key which looked like a circle, which would signify that half her husband’s wealth belongs to her. Another belief is that the Egyptians created this custom, because they lived circular things, they thought it meant eternal life so they used it in weddings.
The rings were only made in metal before but now they have come to take different shapes and forms. The origin is thought to be in the continent of Europe but it has spread around the world.