Most cultures use the left hand when proposing, but there are still some societies that use the right hand when proposing. One such example is Russia where ladies usually put on their engagement bands on their right hand. In Europe, different religious or ethnic civilizations have their own engagement rings conventions, and therefore, even though the majority of individuals across the world use the left hand for engagement, it is not that straightforward.
In Belgium for instance, the hand on which the engagement band is put depends on the locality the couple are from or live in. In the Netherlands, almost all denominations place the engagement ring on the fourth finger of the right hand, but other religions still choose the left hand. In China, the man wears the engagement band on his left hand with the lady wearing it on her right hand to portend the various obligations they both have in the relationship. You can, therefore, see that in most European countries, it is quite typical to have the engagement band on the right hand.
Currently, we are living in a world where the idea of folklore has become much diluted than it once was. Every day, the seemingly boundless regulations of any particular practice are broken and replaced with new ones, starting from how the engagement rings are worn to how the wedding bands are worn. It is therefore not uncommon for a bride to alter her engagement ring to the right hand on their bridal ceremony day so that the wedding band can be placed on the vacant left-hand finger. The bride can either opt to move the engagement ring back to the left hand later after the wedding is over or to keep it on the right hand.
Normally, the engagement ring should go to the third finger of the left hand which is the official ring finger. This means that bother the wedding ring and engagement ring are worn on the same hand. After tying the knot, the engagement ring is first removed from the wedding ring to be put first after which the engagement band is placed next. This happens because the engagement ring is usually removed so that the owner can be able to perform her day to day tasks.
Traditions aside, the engagement and wedding rings are both worn on the left hand since most individuals are usually right-handed hence the left hand is less active compared to the right. Therefore, having the bands on the left hand ensures that they receive less wear than if worn on the active hand, making the rings to last longer. In conclusion, there is usually no set rule about the hand that should have the engagement ring. It is all a matter of personal style, culture, and tradition.