* A boy does not receive an engagement ring like the girl; he would receive a wedding band when the couple get married. In the Western countries the wedding band is worn on the left hand (finger next to the little finger) and with European countries sometimes the wedding bands for both the bride and groom are worn on the right hand.
Left
It goes on the ring finger of the left hand.
The engagement ring is traditionally worn on the fourth finger of the left hand, also known as the ring finger. This tradition is based on the belief that the vein in this finger, called the 'vena amoris' or the 'vein of love,' is directly connected to the heart.
Engagement on the right hand ring finger, and then Wedding and Eternity on your left hand ring finger. You can also put the eternity ring on your right hand ring finger.
Goes into left hand ring finger for women.
* The young man in question can choose to get the engagement ring and have a surprise proposal for the one he loves or, the couple can go to the jewelry store and she can pick out her own engagement ring. There is no rule of thumb in California or in other States on purchasing an engagement ring.
Engagement rings go on the ring finger (the finger next to the pinky) of the left hand.
No, the woman does not engage a man; he gets engaged to her. The couple can go out together to get the engagement ring; he can surprise her by buying an engagement ring and ask him to marry her.
It is said that the engagement rings and wedding bands go on the fourth finger of your left hand because at one time people thought that the vein(s) from the heart were connected directly to that finger, it is also the "closest" finger to your heart.
The wedding ring goes behind the engagement ring, closest to the heart.
An engagement ring is not required, but is a customary symbol of betrothal. Some modern couples are opting for skipping the engagement ring, and saving for their future together instead. Gifts can be exchanged in lieu of engagement rings. To answer your question, No, you do not NEED an engagement ring, but if you want one...go for it!
Depending on where you bought the ring and their return policy you should be able to return an engagement ring if you were not happy with it or if things didn't go as you would have liked with the engagement.
I wouldn't buy an engagement ring from tag Heuer for your girl unless you want her to wear it around her wrist. I would stick to them for watches and go to engagement stores for the ring.