הלכה אויף אסתר 3:10

A ring with a seal upon it is a man's ornament, and not a woman's ornament. But one without a seal upon it is a woman's ornament, and not a man's ornament. Hence a woman that went out with a ring that has a seal upon it and a man who went out with a ring that does not have a seal upon it are liable. But why are they liable? They surely transported them not in the ways of the ones that transport them—as it is the way of a man to only transport a ring on his finger which is fit for him, and likewise of a woman to only transport upon her finger a ring that is fit for her! Because sometimes the man gives his ring to his wife to store it at home and she places it on her finger at the time that she carries it. Likewise, a woman gives her ring to her husband to fix it with a craftsman and he places it on his finger at the time that he carries it to the store. And it [thus] comes out that they transported them according to the way that they [themselves] transport them. And hence they are liable.