1. The proposal ring should be worn on the middle finger of a girl's left hand. Because wearing a ring emphasizes that 'the left hand represents marriage, and the right hand represents love'. Moreover, proposing does not necessarily mean being married, and the ring cannot be worn on the ring finger. The left middle finger is the closest finger to the ring finger and symbolizes engagement and proposal. Therefore, it is very appropriate for girls to wear a proposal ring on their left middle finger.
2. According to traditional Chinese customs, women should wear a proposal diamond ring on their left middle finger. Because in the eyes of many people, a girl wearing a diamond ring on her left middle finger means that she already has a sense of belonging. Often, some women in love will wear a diamond ring on their left middle finger to avoid the pursuit of other men.